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Help Request Answers
2006 Audi A3 2.0L drivers side seatbelt tensioner/igniter
after replacing seat belt tensioner assembly cleared code - same code comes back, disonnected batry and jumpered positive and neg. cables together for ten minutes thinking control module was locked up.after that tried to clear code - code comes right back. che...		 View
1990 Buick LeSabre 3.8L Unknown
This 90 Buick Lesabre was brought to me by a new customer that just purchased the vehicle a day before seeing me. He approached me with the complaint of a rattling noise when he picked the vehicle up. A quick run through with a stethoscope led me directly to t...		 View
1991 Chevrolet Camaro 5.0L Excessive Emissions
Hello fellas. I have a weird one that has me stumped. As mentioned above vehicle has been changed to a 5.0 TPI engine, from what i understand it has never passed smog since engine change due to EGR not working. I tested solenoid and its fine,everything is rout...		 View
2006 Chevrolet W3500 5.2L idles
Need help on this one. I have very little info on this vehicle. I have a 2006 Chevy W3500 box truck with a 5.2 L Isuzu diesel that starts and runs perfect, however there is no response when depressing the throttle pedal (gas pedal)(press the pedal and nothing ... Trouble codes: P0091.		 View
2005 Chrysler Town & Country (Van) 3.8L battery draw
I hope somebody has seen this before. This Caravan has battery draw on IOD circuit. The odd part is that it is a pulsing draw of .4 amp every 30 ms. I don't see anything flashing or on I beleive one of the modules is not going to sleep correctly. There are no ...		 View
2005 Chrysler 300 (Car) 5.7L all gauges
This vehicle appears to have an instrument cluster (CCN) glitch at times. Customer complaint is guages all drop to zero or minimum; speedometer, tachometer, fuel gauge, and temp gauge; and "ESP/BAS" lamp pops on and stays on. At times other warning lights will...		 View
1994 Ford F-250 7.3L engine
Has anyone had a 7.3 Power Stroke with a leak at the rear of the oil pan. We have had the pan off 2 times and used The Right Stuff gasket sealer to seal the pan and it always leaks off the rear of the pan around the rounded part of the rear bearing cap where i...		 View
1998 Ford Taurus 3.0L 1-2 shift
Hi All, Ive got an AX4S in a 98 Taurus. When its cold, it never shifts from 1 to 2. Stays in 1 till you red line the tach. Even if you get it up to 30mph and let your foot off the gas for a moment, when you come back, its still in 1. The computer is commandi...		 View
1999 Ford F-250 Super Duty 7.3L lacks power
This powerstroke runs smooth, no smoke or misfiring. It just doesn't have the power that it should especially accelerating from a stop with a load. It appears the 15psi turbo boost is less than it should be (20+ psi)and it takes too long to build pressure. No ...		 View
2005 Ford F-150 5.4L Misfire, MIL Lamp on
i do get a code for #8 misfire some times no other codes in koer koeo memory Trouble codes: p0307 (misfire number 7 cyl).		 View
2001 GMC Savana 3500 6.5L Poor Idle Quality, Surge, MIL Lamp on
van came in running bad at idle poor accel.found lot of dirt in fuel tank.replaced tank new and new fuel pump and filter with little change in performance Trouble codes: p0219 (p1218-), p1218.		 View
1993 Lexus ES300 3.0L Misfire
I need help on this one. Customer brought car in from another (shop). He took it in for a tune up for a miss. Upon checking the 3 plug wires on the front had been changed. Customer had parts. I completed the tune up of plugs and rear wires. After completion th...		 View
1980 Mercedes-Benz 450SL 4.5L Excessive Emissions
Hello all, Does any body have the wiring diagram for this vehicle. I need to fix this "test only" vehicle for NOx failure. The frequency valve is inoperative and alldata only goes back to 1982 for a 380sl as the nearest match. Problem I am having is there i...		 View
1991 Nissan Maxima 3.0L Poor Idle Quality, Misfire
My son just bought thid 91 Maxima, 3.0l, bank (1) is dead, no change in rpm when pulling plug wires one by one, I have good spark to all (6) plugs, tried swapping plugs from right to left bank, no change. I have 175 psi compression in all cylinders, good injec...		 View
2005 Nissan X-Trail 2.5L abs
ABS code sets while applying brakes. Vehicle does not need to be moving, usually lots of pedal effort will illuminate light. Scanned vehicle using OTC Genysis ---no such vehicle. Entered vehicle as an XTerra to determine code. Verified by disconnecting pressur...		 View
1999 Plymouth Grand Voyager 3.0L Stall
Van came in with complaint of stalling...someone had previously installed a new IAC and spark plugs...cap, rotor, and wires were OEM, so we replaced those as well due to cap burn in. Van stalls when throttle is closed upon decelleration. Cleaned throttle bore,...		 View

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 Audi TT 1.8L rear sun shade
The problem was due to a faulty central locking system contol unit not supplying ground to the relay. The customer elected to delay the repair at this time. Even though we did not recieve any responces iATN is still the best source of Tech support and we hope...		 None
1987 BMW 535i 3.4L No Start
Problem solved. Ignition coil shorted to ground,which took out motronic unit and dme relay.replaced all and car starts and runs reliably now.Sometimes it takes a little longer to work through unusual problems like this one but in the end it all works itself ou...		 8
1993 BMW 325is 2.5L Excessive Emissions
Thanks for the replies on this one. The bulk of the replies said that the vehicle needed a factory catalytic convertor. Many also stated that oxygen sensors would quite possibly be the culprit. This vehicle was fixed by installing a BMW convertor. Thanks ...		 12
2001 Buick Regal 3.8L security
REPLACED THE BCM AND FLASH PROGRAMED IT. I THINK THAT ONE OF THE BCM RELAY'S MAY HAVE BEEN CAUSEING THE SECURITY FAULT. IT WAS FOR THE DAYTTIME RINNING LAMPS. THANK EVERYONE FOR ALL OF YOUR GOOD IDEAS AND HELP.		 4
1995 Chevrolet Lumina 3.4L engine
Thanks for all the replies to get this leaker stopped. After I removed the intake manifold I realized the only real way of solving the leak is to remove the rear head as there is no way to get this oil pump drive out to properly install an oring on the housing...		 22
2001 Chevrolet C3500 6.5L No Start, Stall
Hi guys & Gals, thanks for the replies. Sorry I forgot to post that I had acall into a diesel pump/injetor rebuilder. Got a call back after several replies, he said code was a defienet give away. Remove intake to gain acssee to PMD. Removal was not to ba... Trouble codes: p1216d (fuel soleniod response too slow History code only).		 7
2005 Chevrolet Silverado 1500 5.3L blend door
The customer decided to not attempt any further work so we buttoned-up the dash and gave the vehicle back for the weekend. Sorry for the lack of info and thanks to all that replied to us, maybe we will have another attempt next week to fix the truck for him. 		3
2001 Chrysler PT Cruiser 2.4L tcm
We were unable to locate anyone capable of repairing the module. Finally recieved a factory replacement after 3 weeks, Apparently an issue, and a run was made to cover current bac-orders...		 3
1987 Dodge Ramcharger 5.2L Excessive Emissions, Poor Idle Quality, Stall, Poor Fuel Economy
Thanks everyone for their help. I have a better understanding of how this system works. It was an internal carburetor problem. After repeated attempts to repair this one were unsuccessful, I found a rebuilt non feedback unit that worked as was suggested by La...		 7
2005 Dodge Stratus 2.7L MIL Lamp on
Being in a dealership, I am using 100% O.E. O2 sensors and catalytic converters. Fuel quality is an issue that is highly likely to be the problem, because it seems that this problem is not a national or regional concern. What I have done is the exact opposit... Trouble codes: P0430 (Catalytic 21 Converter Efficiency).		 6
1984 Ford E-350 Econoline 7.5L No Start
After going over and over this vehicle, replaced coil with original unit and it runs. I doubt this was the real fix, however, and I continue to test for additional faults. Perhaps it was a misboxed part, or the real problem was repaired it he process. All r...		 20
2002 Ford Explorer 4.0L transfer case
As all have stated-tire size makes a great impact on transfer case life. I have checked the tires here and like i mentioned they were fairly new. Customer stated they have replaced tires recently and the rear he thought were more worn than the front. He got sc...		 7
1997 Jeep Wrangler 2.5L No Start
Thank you for all the input, ECM has been replaced for several weeks now, no problems. Unit is used, so original is retained for possible rebuild at a later date. Thanks again for all of your help, it was professional and accurate, as usual. Trouble codes: P0341 (CMP sensor circuit problem), P0304 (Cylinder 4 misfire).		 9
1997 Lincoln Continental 4.6L Compressor
James [...] was able to send me the wiring diagrams and the pin point tests. The AC clutch is powered by the EATC through the AC cycling switch and then through the relay. The test that condemned the EATC was to turn the unit on to max ac and check for voltage...		 5
2002 Nissan Xterra 3.3L alternator
Hello group, this xterra is fixed and i would like to thank Gregory, Alan, Mike, Kenneth and anyone else i may have missed for their time and effort. it ended up being just a bad reman alternator. one of the replies mentioned that the phrase quality aftermarke...		 6
2001 Oldsmobile Alero 2.4L Misfire
Ok so the vehicle left yesterday after installing the fourth coil housing. I would like to thank all that responded to my problem. After replacing the first coil housing I found that the plugs came out kind of hard so since then I had been adding anti-sieze lu... Trouble codes: P0300 (random misfire).		 12
2002 Pontiac Grand Prix 3.8L Stall
thanks again for the replies. Customer drove car for about a week till they could bring it back and when i road tested while watching pids it stalled one time and the maf sensor went to zero. Replaced and customer has had car for 4 days with no complaints. t...		 23
1999 Toyota Tacoma 2.4L slips all gears
Hello everyone and thanks for the help on this one. After alot of head scratching, and the input of 3 of you on this. I took the advice of one and put in a pump. I had the other junkyard unit sitting on the ground, so i pulled the pump out and plunked it i...		 4
2001 Volkswagen Golf 2.0L MIL Lamp on
well first of all I want to thank all of you who said to recheck the mass airflow sensor since this took care of my check engine light. Most of the replies suggested that this mass airflow sensors have a lot of problems and also to used OEM parts since what I ... Trouble codes: P0172 (rich condition).		 10
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