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Prev Professional Automotive Repair Technical Discussions for January 28, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2000 BMW 323Ci 2.5L Reverse VIN: WBABR3342Y
I've got a 2000 323Ci with a ZF 5HP-19 that has failed the "D" drum. Customer says reverse seemed different for 2 or 3 times backing up then the next time - no reverse. BMW dealer wants $6,000 to swap trans. I can save them some $..hopefully. Any advice would ...
2001 BMW X5 4.4i 4.4L Hesitation, Cuts out, MIL Lamp on VIN: WBAFB33551
Vehicle came in for check engine light and vehicle lacks power. Checked for codes; has code p0171 and p0174-system too lean both banks 1 & 2. Hooked smoke machine up. No leaks found cold. Test drove around block and vehicle has no power if WOT. If gas pedal is... Trouble codes: P0171, P0174
1997 Cadillac DeVille 4.6L speedometer VIN: 1G6KD52Y8V
Speedometer reads 0MPH always. All other functions of the ICP are operational. Handheld scanner shows the correct MPH reading at the PCM. Backprobing the VSS input signal at the ICP using the same ground as the cluster uses, the signal appears good. DVOM chime...
2003 Cadillac Seville SLS 4.6L Cluster display VIN: 1G6KS54Y93
Hello everyone, This Cadillac had failed inspection for no MIL light. Check over and identify failed bulb in cluster. Replaced cluster with re-manufactured unit and the mil light now works normal, got vehicle through inspect and after about the third start up...
2011 Cadillac CTS V 6.2L Electrical system VIN: 1G6DV8EP3B
Hey everyone, this car is a USA car in Canada, and customer has tried to get in for warranty and they refused due to car being written off in accident. here is the issue. -car starts up fine -car drives fine -intermittently the car will not shut off when yo...
1964 Chevrolet Corvette 5.3L shifter VIN: 40867S1170
Hi guys, I have this 64 corvette that came in to have a new clutch due to chattering. removed old clutch and install new clutch at that point noticed the shifter was out position and was lock will not move. Now this problem is related to the shifter only when ...
1994 Chevrolet S10 2.2L backfires when crank VIN: 1GBCS1046R
This is actually an LLV mail truck hence the low mileage and old age. It runs very well after it is started but when cranking, it backfires in the intake and/or jerks back against the starter. It is worse cold but it will act up just about anytime you try to s...
2001 Chevrolet Malibu 3.1L Poor Idle Quality, Surge, Cuts out VIN: 1G1ND52J81
Intermittant cut-out, almost stalling only at idle mostly when in gear stopped at a light. Vehicle runs fine on road all the time, however will almost stall and has a hard cut-out when your stopped at a light. The cut-out feels like a totally shut down for a s...
2002 Chevrolet Silverado 2500 HD 6.6L Surge VIN: 1GCHK23152
This truck starts a hard surge at idle (almost stall) when coolant temp reaches 140 deg. What i see is happening is the throttle plate slams closed for a few seconds then opens again just before it stalls. this cycle happens about 4 to 6 seconds apart. the egr...
2003 Chevrolet Silverado 2500 6.0L drivetrain VIN: 1GCHK24UX3
Hey all, This is a farm pickup set up for hauling trailers occasionally. Customer brought it in with an intermittent noise that sounds like stripped splines on the front driveshaft slipyoke. Of couse I checked all that first and couldn't find anything.I also ...
2003 Chevrolet Express 3500 6.0L MIL Lamp on VIN: 1GBJG31U33
viehicle came in because could not smog and has o2 heater codes i have never seen 3 heater circuits non opperational all have 12 volt reff for heaters but computer does not pulse heaters when ennabled have done bentch test and the heater circuit opperates on t... Trouble codes: P0135, P0141, P0155
2003 Chevrolet Silverado 1500 4.3L Hesitation, Misfire VIN: 1GCEC14X23
Misfiring on all cylinders check for vacuum on dipstick tube to see if intake manifold gasket leaking causing misfires-none check fuel pressure-55lbs install lab scope on crank sensor-ok install lab scope on cam sensor-random small spike at top of wavepattern ... Trouble codes: P0300 (Random multiple misfires)
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDS13S44
I have this one that keeps throwing up a P0410 code. The customer replaced the air check valve on the side of the cylinder head after doing his own research. First thing I checked was to see if air pump was coming on. It was, however, it wasn't as loud as I ex... Trouble codes: P0410 (Secondary air injection system)
2004 Chevrolet Silverado 2500 6.0L heat
After replacing heater core radiator thermostat and water pump all vents still blow cool. Top radiator hose is hot bottom radiator hose is cold. One heater hose is hot one warm I am a trans rebuilder and lost here Thanks
2006 Chevrolet Impala LS 3.5L evap monitor incomp VIN: 2G1WB58N96
Thanks to the lovely new drive clean system this vehicle will not pass its etest due to the evap monitor not running. it had a few problems as you can see from the repair history, those were all repaired at the begining of january and I have since been unable ...
2008 Chevrolet Malibu LT 3.6L timing chains VIN: 1G1ZJ577X8
Car towed for no start condition. Will not crank, customer installed new battery. Found engine will not turn over by hand. Oil is full, customer states car cranked over after installation of battery, but it cranked slow, then it stopped. Will a timing chain fa...
2000 Chrysler Town & Country LXi 3.8L Heater
Car came in with no heat found a clogged heater core replaced and had same poblem since the rad. Was under warranty i replaced it agian with a new thermostat . Ran it bfor a while and my heater core hoses do not get hot not even warm i run it and rev it to the...
2000 Dodge Durango R/T 5.9L Heater VIN: 1B4HS28Z0Y
Customer complaint no heat from heater. I initially thought heater valve issue valve checked fine then I thought blend door stuck. Then I found no engine heat so I condemned thermostat owner put new thermostat in and new radiator. Still no engine heat so I Put...
2001 Dodge Dakota 4.7L Door Locks VIN: 1B7FL26N91
Fist off. thank you for any help. Customer complaining that the doors will lock with the keys in or out of the vehicle. I check for body codes and it says Rom Checksum Failure. With scan tool hook I look at the door switches and there is a difference between v...
2006 Dodge Sprinter 2500 2.7L Hesitation VIN: WD8PD74496
First turn of the key all is normal until you come to a stop. That is when the turbo stops working and it is hard to get to 50 mph. I normally do not work on dls truck but tring to help. Thank in advance to those who can help. Trouble codes: P0234, P0336, P0675, P0673, P0106
1996 Ford Explorer Eddie Bauer 4.0L foward gears VIN: 1FMDU34X7T
vehicle came in had reverse and 1st gear but no 2nd or 3rd. when rebuilding found intermediate band servo piston and overdrive servo band piston hard as ceramic. vehicle test drove great after rebuilding. vehicle returned 3 mths later, with only reverse. vehic...
2004 Ford Expedition Eddie Bauer 5.4L heated driver seat VIN: 1FMFU18L34
I am trying to diagnose a nonop of the left hand seat heating and cooling. I tested the switch per diagram, but have no way to check the codes in the seat heat module. Is there another way to diagnose this problem? The right seat works just fine, but the left ...
2005 Ford Explorer Limited 4.6L Torqe Convertor VIN: 1FMDU75WX5
Came in for check transmission warning on dash. Checked codes and found P1744 convertor clutch performance (stuck off). Checked fluid level and condition, both ok. Moitored trans during test drive and had no rpm drop when tcc was commanded either with scanner ...
2010 Ford Escape XLT 2.5L vehicle
v ehicle vibrates at 50 mph and continues until 60mph,this is a fleet vehicle so i'm able to swap parts from another vehicle.so far we have swapped the wheels and drive shafts.no change..
1998 GMC K2500 Sierra SL 5.7L Hazard lights VIN: 1GTGK24R9W
I checked all fuses and found blow fuse #1 for hazard power, changed, replaced flasher, replaced multifunction switch. When I use my meter on the flasher I can see it is making continuity when flasher button is pushed down. Directionals and brake light work OK...
2004 GMC Envoy XUV SLT 4.2L batt light VIN: 1GKET12SX4
car come in batt light on mesage display says batt not charging code po621 in memory replaced alt cleared code. light and code back on in 15 seconds,batt voltage on scanner 14.4 volts measured voltage at batt 14.4 volts yet batt light on and code resets
2002 Honda Accord SE 2.3L Trans VIN: 1HGCG56702
HI honda tech i have 02 accord 2.3 l coming with bad trans (burning clutch,alot metal chip when drain fluid,replace with rebuid trans it come with code p0758,replace shift solenoid B & C & line pressure solenoid test drive it come to code p1753 replace tcc sol...
2003 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 5FNRL18983
The customer had noticed a misfire condition only during start up and only after a long cold soak. The misfire condition is very brief, (8 - 15 seconds in duration). After it clears, it doesn't misfire at all during normal operation and will not occur again un... Trouble codes: P0300 (p0304-), P0304 (p0305-), P0305 (p0306-), P0306 (p1399-), P1399
2003 Hyundai Tiburon GT 2.7L immobiliser VIN: KMHHN65F53
i describe the problem in the other section .
2007 Hyundai Tucson GLS 2.0L MIL Lamp on VIN: KM8JM12BX7
Have replace purge control solenoid valve,canister,fuel tank pressure sensor with updated connector,gas cap,and closed canister valve. Have tested and re-tested each part.Have good vacuum to purge valve.Purge holds vacuum.Can feel purge click when operated by ... Trouble codes: P0441
2003 Jaguar X-Type 2.5L Security VIN: SAJEA51D93
We don't have a Jaguar dealer around here anymore. Owner of this Jaguar had one key and lost it. I bought 2 replacement keys and had a locksmith cut them. The locksmith didn't have the ability to program this car. We have done plenty of Fords using IDS, but ar...
2005 Jaguar XK8 4.2L Glass closing VIN: SAJDA42C35
The customer came in with the complaint that his driver's window closes with a gap at the top rear. I took the casing off the door and removed the moisture barrier and have attempted adjustments to the motor (4 fasteners) and the tracks (very little adjustment...
2005 Jeep Grand Cherokee Laredo 3.7L Heater plugs VIN: 1J8HDE8MX5
Hi We have an 06 Jeep (RHD - UK model) diesel ( No option to put 3.0 CRD in ) for non start from cold & battery drain. We checked battery drain & traced fault to heater plug control unit. Replaced control unit - still the same. We ran the permanent live fee...
2003 Land Rover Discovery SE 4.6L MIL Lamp on VIN: SALTY164X3
I thought this would be easy. New customer came with check engine light on and codes P1412 & P1415. I let it cool overnight (~20 degrees F) and had no secondary air pump on start-up. I checked for voltage to air pump: none. I checked for voltage to relay: good... Trouble codes: P1412 (Secondary Air Bank 1), P1415 (Secondary Air Bank 2)
2007 Land Rover Range Rover Sport HSE 4.4L Engine VIN: SALSK25487
Hello to all, very intermittently the engine will puff excessive thick white smoke,I found what seems to be engine oil coming out of the tailpipe. Cooling system is good , no overheating, coolant pressure test..ok Really smells like engine oil getting in exhau...
2007 Lexus ES350 3.5L 1-2 and 2-3 shift VIN: JTHBJ46G47
I want to thank everyone in advance. The car came to the shop with and metallic rubbing noise only audible while moving in reverse. Took it apart and found the c2 clutch hub was coming off of the planetary sun gear. The c2 hub was rubbing in the clutch piston....
2007 Mazda CX-7 Touring 2.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JM3ER29L37
This vehicle came with MIL on, codes P2178 and P2188. Customer subsequently took vehicle to dealer on the basis of emissions warranty. Dealer Diagnosed failed turbo charger and air fuel sensor but declined warranty based on previous vehicle history with Mazda ... Trouble codes: P2178 (System Rich Off Idle - Bank 1), P2188 (System Rich at Idle - Bank 1)
2003 Mini Cooper S 1.6L Unknown VIN: WMWRE33443
Hi, i have a 2003 mini cooper s whit code p2096 post catalyst fuel trim system too lean bank 1, i replace both oxigen sensor i check intake for leak and exhaust, but the code is pressent at all the time it won't clear, and i'm not sure if i need to use dealer ...
2009 Mini Cooper Clubman 1.6L No Start VIN: WMWML33599
Hello, Looking for some input on a 09 mini cooper clubman. The vehicle had a massive loss of oil from the timing chain tensioner while driving. I know there is a TSB on the tensioner but for now I'm trying to see if there would of been an effect on the vanos s...
1995 Mitsubishi Eclipse GST 2.0L ignition VIN: 4A3AK54F6S
Good Morning, We have this low mileage Mitsubishi Eclipse gst that was towed in for a no start condition. The vehicle owner stated that a speaker and amp were installed recently causing the car to not start with the ignition key. The vehicle will start and run...
2004 Nissan Maxima SL 3.5L no communication VIN: 1N4BA41E54
I'm wondering if anyone has had a similar issue with one of these and knows whether or not the modules are prone to failure. As of right now I suspect I have a defective used replacement, which may have had the same issue I have and resulted in the car being s...
2005 Nissan 350Z Grand Touring 3.5L poor acceleration VIN: JN1AZ36A95
Problem: Vehicle throttle operation appears to be limited to 20% Vehicle was involved in a fresh water flood where the engine was hydrolocked. Vehicle sat for 2 years in customer's garage and finally he decided to get it fixed. During restoration process rep...
2000 Pontiac Montana 3.4L Misfire VIN: 1GMDX03E1Y
This is my own vehicle. Replaced head gaskets 1K ago and all was fine for a couple weeks. Then sometimes when cold the SES light would come on and a random misfire code would set. Could fine no misfire nor feel one. About 2 weeks of that and then start after w... Trouble codes: P0300
2001 Saab 9-5 SE 3.0L Heat VIN: YS3EF48Z11
This came in one month ago with a complaint that the heat could not be regulated. The left blend door stop arm was broken but the shaft was not, so we replaced it with an aluminum one from Saab. We also fixed the recirc door actuator. Cleared codes, did a self...
2007 Saturn Aura XE 3.5L # 3 Injector VIN: 1G8ZS57N67
Customer complains when first started unit has excessive white smoke and “putrid smell" from exhaust, No Check Engine Light On,, and when road conditions are wet traction light comes on, When we scanned system cold # 3 injector pulse width is out of range, com...
2008 Subaru Outback 2.5i 2.5L Block? VIN: 4S4BP61C28
Good customer, always on time and up-to-date with services. Customer called and said it was bubbling brown fuild on the ground. I asked her if it over-heated, " I don't think so", asked her to turn the key back on - Temp gauge went to hot. Towed it in, radiato...
2000 Toyota RAV4 2.0L Surge, Cuts out, Stall VIN: JT3HP10V4Y
First off, did research archives and found helpful info (a match on description) on a 1998 RAV4. However, fix did not help us on this one. To recap, starts and idles good, accelerate to 2200 to 2400 RPMs, cuts out severly, muffled backfire, then dies. Can pull...
2004 Toyota 4Runner Sport 4.7L Starting VIN: JTEBT14R74
driver said coming down freeway car shut off. turn key on has power to radio,wipers,heater but no power to instrument panel batt light oil light ect engine wont crank. if i put power to the 10 amp ign fuse it will start and run need to no what powers that fuse...
2004 Toyota RAV4 2.4L engine VIN: JTEGD20V54
replaced cylinder head gasket for external coolant leak after repair completed vehicle will crank but not start seems to be fuel fouling spark plugs no cofes stored good spark plug spark compression 180 pounds on all 4 cylinders ran good before repair just had...
2007 Toyota 4Runner Limited 4.0L 140 Amp Fuse VIN: JTEBU17R07
How do you get the underhood fuse panel apart to access the bolts to the 140 amp fuse.the panel has some snap locks on it at each end but still won't co-operate and we don't want to damage anything. Thank you
1998 Volkswagen Jetta GL 2.0L MIL Lamp on
Car intially came in with p0411(secondary air injection incorrect flow detected) and p0171( lean bank 1)Freeze frame of lean condition had LTFT at 6% and STFT at 3%. I went after the secondary air injection first.I tested the system in its entirity as natural ... Trouble codes: P0411
2001 Volkswagen Passat GLS 1.8L Turbo VIN: WVWAC23B81
Came in with intercooler pipes full of oily ice and slush. Replaced rubber y elbow at back of valve cover it was collasped. Cleaned all vent pipes on engine and turbo discharge side. Custome drove 160 miles and it happened again. Had it cleaned again then anot...
2003 Volkswagen EuroVan MV 2.8L Mechanical VIN: WV2NB47073
We installed remanufactured engine we have code P1347 Cam Sensor G40 CKP sensor G28 incorrect Allocation, removed valve cover timing is good anybody has any Idea what the problem could be, Thanks
2004 Volkswagen Passat GLX 2.8L Heater VIN: WVWRH63B14
Hi All This 2.8L Passat came into the shop two weeks ago with no heat. I have seen this before and usually it is a plugged heater core. It was. Back-flushed CLR through heater core and got a lot of brown sludge and some sand like product. I need to mention th...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2007 Audi S4 Avant 4.2L Misfire VIN: WAUUL78E77
It finally ended up being a bad set of fuel injectors. When I replaced one and moved the other, the new one was defective, so it was confusing on nailing down the problem. I sent those back and obtained two new injectors, problem gone! As we all know, parts ca...
1996 BMW 328i 2.8L power loss VIN: WBABK8326T
Well Mikol wouldn't take up a career in gambling 100% not the MAF. My scan tool came down with illness and I had to send this customer to a collegue. thank you for all your advice,Especialy Randy, Cedric & Eric.
2000 BMW 528i 2.8L MIL Lamp on VIN: WBADM6341Y
I Removed the intake agin and double checked everything, unfoutnatly I do not have acess to a smoke machine at this time. However I did replace the 4 hoses conceted to the CCV valve One was cracked. now It runs OK on cold start but will still set P1188 and P11... Trouble codes: 1188 (High fuel trim), 1189 (High fuel trim).
2008 Buick Lucerne CXL 3.8L Radio VIN: 1G4HD57218
We did use SPS to flash program the radio. There were no codes in the radio,body computer or the digital radio reciever. The clock on the radio would come on when you turn the key on. The main power wire was good the only other power the schematic showed was a...
1998 Chevrolet Tahoe 5.7L transfer case control module VIN: 3GNEK18R6W
its a 50/50 split on if its normal or not. customer has taken vehicle for now. one person asked if continually clicks which it does not do. seems like it is going thru a self test of the system.
1999 Chevrolet Lumina 3.1L Starting VIN: 2G1WL52M6X
IATN to the rescue!!! Doug [...] and others were spot on and pointed me in the direction of the passkey system wires that apparently have a history of breaking in the column. Installed a new lock cylinder and got the keys programmed and it drove out of he...
2001 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK29101
WE determined through extensive testing that this engine needs injectors. The owner is a recent graduate of the local community college diesel program, and will attempt it himself. This is what I learned; This engine will only crank for three seconds if it doe...
2007 Chevrolet Avalanche LTZ 5.3L variable lifters VIN: 3GNFK12327
2007 Chevrolet Silverado 1500 LTZ 5.3L ebcm VIN: 1GCEK19J07
well after another ebcm and no fix did some more investigating to see if ebcm was really awake or not.. I deceide to check for the momentary 12 volt reference to the front speed sensors, when i went check the left front ref.votage it had 12 volts (gray wire)on...
2011 Chevrolet Traverse LT 3.6L P/S Pum VIN: 1GNKRGED9B
First off, thanks to everyone for taking their time to help me with this. It is finally fixed. Most everyone agreed that is was most likely the pump. I changed the pump, completed the bleed procedure twice and all seems well. No more loss of assist. Thank...
2002 Dodge Ram 1500 ST 4.7L Oil Pressure VIN: 3D7HA18N42
First I'd like to thank everyone who replied for taking the time to weigh in. Quite a few of you were thinking along the same lines as we were. You suggested pulling the pan to inspect for sludge, and that's exactly what we did. No sludge. Nada. None. Th...
2004 Dodge Dakota Sport 4.7L odo says no bus VIN: 1D7HG38N34
So after all tests and checks I got lucky found a used cluster unit in a local salvage yard, everything is working now I need to find someone that will flash a used unit, to get correct mileage on odo. Any sugggestions Thx TO all.
2006 Dodge Sprinter 2500 2.7L Cuts out, MIL Lamp on VIN: WD0BD64456
Looked at the harness seemed ok changed the fuel filter it had black sediment and had notbeen change for over 100000 km all seemed goodafter thanks for the help Trouble codes: P0201.
2004 Ford F-550 Super Duty Lariat 6.0L starting VIN: 1FDAF56P64
Ok folks... All of the codes meant pretty much nothing except a couple of them. As most of you said the Egr codes along with the cam and crank sensors were nothing to be concerned about with the issue I was having with this truck. Turns outnthe hpop was then...
1999 GMC Yukon SLT 5.7L No Start, Cuts out, Stall VIN: 1GKEK13R1X
Well I think this vehicle was a combination of issues. I was able to get the 175 amp fuse on the rad shroud to lose a connection while shaking it so I feel that was the major culprit causing the shutdown since it would power up the fusebox. The fuel pump relay... Trouble codes: P0141 (O2 b1s2), P0161 (O2 b2s2).
2006 GMC W4500 Forward W4S042 5.2L Hesitation, Cuts out, Stall, Misfire, no throttle response VIN: J8DC4B1677
Well, unfortunatley this one had to go to the dealer. I am not a diesel guy and this one got over my head real fast. I have a Launch scan tool with the latest updates and I can read the info well but I am not sure exactly what I am reading or if it is right or... Trouble codes: P0301, P0303.
1995 Honda Accord LX 2.2L Stall VIN: 1HGCE1821S
I got some good information. Thank you, Long from Texas for a detailed check. I printed it and will keep for future reference. I removed the dist. cap and looked inside. The dist was a rebuilt(I found the tag) and what I found was two of three push on conne... Trouble codes: 15 (ignition out line or circuit fault).
2002 Infiniti I35 3.5L MIL Lamp on, Pings VIN: JNKDA31AX2
We will be trying new camshaft and crank sensors first then rechecking the cam degrees. If it's still not near zero we will be checking the timing chains. Trouble codes: P0011, P0021.
2008 Infiniti EX35 Journey 3.5L Misfire, MIL Lamp on VIN: JNKAJ09F68
2009 Jeep Wrangler Unlimited X 3.8L goes to default VIN: 1J4GZ391X9
Howdy techs. Sorry I'm so long getting back on this one. This is one of those jobs where you almost need to work on it while they are driving down the road! They have been using it all this time, running in default, because they have to have it for the mail ro...
2006 Land Rover LR3 SE 4.4L pcm VIN: SALAD25476
We finally found the crankcase vent valve was causing a small vacuum leak.It is located at the front of the right valve cover. After two long test drives with no codes reset we delivered the car to the customer.
2005 Mercedes-Benz E500 5.0L abs VIN: WDBUF70J65
thanks everyone for helping out, yes it was the reservoir, we replaced it with a new one, after testing the brake for pressure we found a bad brake caliper too was leaking, replaced caliper and everything was fine. so thanks to all who said it was the reservoi...
1996 Nissan Altima GLE 2.4L Poor Idle Quality
First off thanks to all of you who replied you guys are a wealth of knowlege. The problem turned out to be two fold. First the throttle body gasket was leaking and secondly the idle air control valve assseymbly was so coroded i had to replace it. Vehicle runs ...
2009 Subaru Forester X 2.5L Steering angle sensor VIN: JF2SH64619
No helpful replies on this one. Recalibrated steering angle sns. with a snap-on Modis and vehicle is fixed. Lesson learned don't trust your equipment 100%. Thanks to all that responded.
2000 UD 1400 4.6L No Start VIN: JNAUZV1J0Y
Well UD service manuals are inccorect. I went through four sensors and all tested at 1.3kohms. I found that that main fuel filter by tank was clogged. PROBLEM SOLVED Trouble codes: 16 (Crank sensor no pulse).
2005 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWAD63B45
Well i have to close this help request before I get a bad rating, but the customer called and said the light came back on not sure of code yet but thinking a lean code. I'm not throwing in the towel yet we are going to get it back in and check out the pcv unde... Trouble codes: 17705 (pressure drop between turbo and throttle valve), 16684 (random misfire detected), 16685 (cylinder number 1 misfire), 16686 (cylinder number 2 misfire), 17544 (fuel trim bank 1 system too lean), 17519 (o2 sensor regulation bank 1 no signal no commuiction system).
2009 Volkswagen Passat Komfort 2.0L Misfire VIN: WVWJK73C89
with the help of a local euro shop, we found # 4 ign, coil to be bad, intermittently, also customer said she was using 87 octane gas, when 92 is required, Thanks to all the responses, your help is very much appreciated, Trouble codes: P0302.
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