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P0300 Diagnostic Trouble Code Discussion for February 2010

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2007 Hyundai Entourage SE 3.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: KNDMC23387
P0300: Multiple Misfire Detected. have never worked on this model has anyone seen these codes? i checked engine data and bank 2 desired retard was 0 and actual retard was 50 this engine has a timing chain so before i dig in i wanted to see what ya'll had to say about it.thank you
February 01, 2010
2003 Mitsubishi Eclipse GS 2.4L Misfire VIN: 4A3AC44G33
P0300: Random Misfire Detected. This vehicle is burning up both ignition coils every week or so. Primary side is overheating and melting. Have tried different brands of coils to no avail. Checked the plug type and gap, charging system voltage, etc. All seem ok. May be excessive dwell but nee...
February 01, 2010
2000 Chevrolet Blazer LS 4.3L Misfire VIN: 1GNDT13W1Y
P0300: Multiple Cylinder Misfire Detected. Hi Guys And thanks in advance. This vehicle has a random multiple mis-fire in all cylinders. A tune up was done at another shop. All the goodies were replace. I remove a couple of plugs just to check if they were wet and they were not, plugs nice and dry. I su...
February 03, 2010
2001 Chevrolet Cavalier 2.4L Poor Idle Quality, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1G1JF52T31
P0300: Multiple Engine Misfire Detected. Customer complains of surging when coming to a stop and poor fuel economy. I verified the surge/misfire at idle in P/N or D/R in service bay and during test drive. Also power is good and car has no driveability issues off idle. I checked the fuel injectors wit...
February 03, 2010
2005 GMC Sierra 2500 HD SLE 6.0L Misfire VIN: 1GTHC24U05
P0300: Multiple Engine Misfire Detected. ... 2500hd pickup with a p0300 random misfire code that only appears when you drive above 60mph,but it runs good. Has ac delco plugs(new), new delco wires ,cleaned injectors with GM stuff.Did power balance and injector tests with Tech2.All good. Also cleaned e...
February 03, 2010
2002 Pontiac Grand Prix GT 3.8L Misfire VIN: 1G2WP52KX2
P0300: Multiple Cylinder Misfire Detected. Hello all, Thanks for reading my request. This car came from a referal from a local (Reputable) trans shop. The owner is having problems when the car is warmed up and trying to pass other cars on the highway. At that time the complaint is a miss. The trans sho...
February 03, 2010
2004 Volkswagen Passat GL 2.8L sometiomes hard star VIN: WVWRH3BB47
P0300: miss missing. this car starts great cold no codes, run for a bit and this shut off come back hard starting and smell gas , sometimes sets codes for miss intermit come back couple hours starts great again thanks brian
February 03, 2010
1996 Chevrolet C1500 Silverado 5.7L Misfire VIN: 2GTEC19R7T
P0300: Multiple Cylinder Misfire Detected. I have a 1996 Chevy C1500 5.7 that has a misfire on #6 all the time. Truck runs great under acceleration just misfires at idle in gear or park. I have a genisis that shows a #6 misfire count all the time, and the truck idles rough. I have replaced two o2 senso...
February 04, 2010
2000 Chevrolet Blazer LS 4.3L Misfire VIN: 1GNDT13W1Y
P0300: Multiple Cylinder Misfire Detected. Hi Guys And thanks in advance. This vehicle has a random multiple mis-fire in all cylinders. A tune up was done at another shop. All the goodies were replace. I remove a couple of plugs just to check if they were wet and they were not, plugs nice and dry. I su...
February 04, 2010
1996 Dodge Dakota 2.5L No Start, Stall VIN: 1B7FL26P9T
P0300: Multiple Cylinder Misfire Detected. Good afternoon all. Hopefully someone can direct me in the right direction on this one. About 2 weeks ago this Dakota comes in on the hook with a no start. Tow truck drops it, I get in a fire the thing up,hmmmmm. I get it in the shop and call the lady, she say...
February 04, 2010
2002 Pontiac Grand Prix GT 3.8L Misfire VIN: 1G2WP52KX2
P0300: Multiple Cylinder Misfire Detected. Hello all, Thanks for reading my request. This car came from a referal from a local (Reputable) trans shop. The owner is having problems when the car is warmed up and trying to pass other cars on the highway. At that time the complaint is a miss. The trans sho...
February 04, 2010
2005 Volkswagen Jetta 2.5 2.5L Misfire, MIL Lamp on VIN: 3VWSF71K15
P0300: random misfire. Vehicle misfires. Scoped injector and coils-ok. Scoped maf sensor-ok. LTFT -3.5%. Sprayed with gum cutter. No vacuum leaks. Excessive vacuum from filler cap and dipstick tube. Replace vc for possible torn crankcase ventilation diaphram. No change in the way th...
February 04, 2010
2005 Dodge Ram 2500 Truck SLT 5.7L Poor Idle Quality, Misfire VIN: 1D7KS28D85
P0300: Multiple Cylinder Misfire. This truck came in for a misfire under acceleration. Pulled two plugs, found .062 gap so suggested replacement of plugs. Replaced plugs with OEM Copper Champion plugs from dodge. Now engine misfires at idle only on Bank #1. Yep, cylinders 1,3,5,7. Checked firi...
February 06, 2010
1998 GMC Savana 2500 4.3L Misfire VIN: 1GTFG25W7W
P0300: Multiple Cylinder Misfire Detected. Help this makes no sense everything appears to be there for this to run right but it wont. loosing hair fast. Misfire on 5 and 6 cyl constant at idle seeems to clear up a little at higher rpms. Replaced intake gasket and updated injector assy to newer style ef...
February 08, 2010
2004 Chevrolet Express 3500 6.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1CGHG39U44
P0300: Multiple Cylinder Misfire Detected. #7 cylinder skipping at idle. Goes away at 2% throttle. #2 also skips at times but I beleive that's a sympathy skip.
February 10, 2010
1999 Dodge Stratus 2.4L Poor Idle Quality, Surge, Misfire VIN: 1B3EJ46X2X
P0300: Multiple Cylinder Misfire Detected. have this dodge thats driving me crazy.it surges and misses only at idle.get about 1500rpm the miss goes away.had checked for vacum leaks,none found.pulled egr valve,all fine.at idle spark advance is all over the place-+2-20btdc.at ilde the st.adap-2.5,ltadap-...
February 10, 2010
2002 Nissan Xterra SE 3.3L Poor Idle Quality, Misfire VIN: 5N1MU28Y82
P0300: Multiple Misfire Detected. ... charger. It has a P0300 or P0306 at times also P0328 knock sensor When car is cold it misses on one cylinder. As you run it and it warms up it stops missing. Inputs and outputs look OK. No other codes for rich or lean Scope shows all cylinders firing goo...
February 10, 2010
2006 Saturn Ion-2 2.2L Stall, Misfire VIN: 1G8AN15F86
P0300: Random Misfire Detected. ... misfiring when leaving carwash. She said she reved the engine and then it went away. she brought it right over and I pulled a p0300. So I started by dumping a bucket of water on the engine since it ws running fine. it started misfiring on 2 and 3. Long sto...
February 11, 2010
2006 Chrysler Sebring 2.4L Misfire, MIL Lamp on VIN: 1C3EL55RX6
P0300: Multiple Cylinder Misfire Detected. Hello to all.This vehicle was presented with a cel on no customer complaints.Code po301 stored. Initially did not feel a misfire but after idling a while i did feel a shaking at idle .Misfire counter for cyl 1 slowly climbing with what feels like a partial mis...
February 12, 2010
1999 Pontiac Grand Am SE 2.4L Misfire VIN: 1G2NE52T6X
P0300: Multiple Cylinder Misfire Detected. please help me i am working on a 1999 grand am it has a come and go miss fire that only hapens at idle, somtimes it will run good for 2 hours , and sometimes 10 min. I am ready to rip my hair out. thanks for the help in advance
February 13, 2010
2000 Chevrolet Blazer LS 4.3L Hesitation, Cuts out, Misfire VIN: 1G4FH879WY
P0300: Multiple Cylinder Misfire Detected. Need help with this 2000 Blazer guys. Here's what's happening. Customer brought it in for cutting out and misfiring. Basically can drive, but if you lean into the gas pedal at all, it will start boging down and back fire at times. When in the shop this misfiri...
February 17, 2010
2004 Jaguar XJR 4.2L Excessive knocking VIN: SAJWA73B74
P0300: Random Misfire. Vehicle has a very loud knocking noise only under acceleration (heavy acceleration). It sounds like detonation (the "marbles in cylinder" sound), but it is very pronounced. So much so we initially thought it was a mechanical problem. We put "ears&...
February 17, 2010
2008 Dodge Avenger SE 2.4L MIL Lamp on VIN: 1B3LC56K58
P0300: Multiple cyl miss fire. ... codes p0301,p0300. misfire monitor counts miss fires on # 1 and 4. The car runs absolutly great.No sign of misfire while monitors are counting what so ever...Generally on a cold start it wont start counting until I rev i...
February 18, 2010
2001 GMC Yukon XL 1500 SLE 5.3L Poor Idle Quality, Misfire, no power VIN: 1GKFK16T31
P0300: Multiple Cylinder Misfire Detected. ... code p0300 just to check put in a set of plugs did not fix prob when looking at missfir data it shows that cyl 2 4 6 8 all missing that is thw whole pass. side # 6 and 8 seem to be the worst fuel pressure is 65 psi swapped coils with other side and no chan...
February 18, 2010
2004 GMC Sierra 1500 5.3L Misfire, MIL Lamp on VIN: 2GTEK13TX4
P0300: Multiple Cylinder Misfire Detected. Any help would be apprieciated. This vehicle came in with a miss and lean code on bank one. I checked fuel press. 62 P.S.I. I also checked for vaccume leaks and found none. Checked TSB's And O2 sensor not cracked. Cyl. 1,3,5,7 misses inter with 1,5 missing all...
February 18, 2010
2003 Isuzu N NPR 6.0L Misfire VIN: 4KLC4B1R03
P0300: random. 5.7 vortech not a 6.0 Fighting a cylinder #3 and #5 missfire. replaced worn out distributer no change. cam retard [...]. swapped injectors no change. new plugs, wires, cap, rotor no change. tech 2 show's running lean bank 1. backpressure test perfect. smoke ch...
February 19, 2010
2002 Chevrolet Tracker LT 2.5L MIL Lamp on VIN: 2CNBE63492
P0300: random misfire code. ... cheverolet geo tracker that intermittantly will illuminate the mil with dtc p0300. i have replaced the spark plugs so far. every time it comes in it runs just fine. i can never get it to act up. freeze frame shows that it happens when the ect temp is 185 d...
February 22, 2010
2005 Dodge Durango Limited 4.7L Poor Idle Quality, Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1D4HB35F62
P0300: Multiple Misfire Detected. Ok I have this truck here we have been trying to figure this one out all day I have misfires on cylinders 1,3,8 have spark on all three have injection pulls on all three good compression. coils are new injectors are new on 1 and 3 fuel is 58 psi right where it...
February 23, 2010
1996 Honda Civic LX 1.6L Excessive Emissions, Surge, Stall, Misfire, MIL Lamp on VIN: 2HGEJ6670W
P0300: Random Misfire Detected. here is a tough one. I have a honda civic here that the customer put a long block in himself which he said only came with the head and block so he used his original intake and exhaust. he drove it for 5 days and he says it was driving ok at first and then it ...
February 24, 2010
2005 Ford Taurus SEL 3.0L Poor Idle Quality, Surge VIN: 1FAFP56U35
P0300: random miss fire. this car will idle poor surges and stalls only when cold first thing in the morning it acts like a bad iac valve but we had one here to try, did not change
February 25, 2010
2004 Audi A4 3.0L Hesitation, Misfire, MIL Lamp on VIN: WAULT68E44
P0300: random misfire. looking for some help with this audi lack of power misfireing onn bank2 intake manifold runner was stuck vacuum actuators inop., replaced intake driver unit cleared all codes misfire codes and lack of power come right back. found compression higher on bank 2 t...
February 26, 2010
1997 Buick Park Avenue Ultra 3.8L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G4CU5211V
P0300: Engine Misfire Detected. For a short while customer complained that in wet weather it would buck and misfire on occasion. It needed a tune up and I found arcing and deterioration of the coil pack so I replace all three with module, wires and plugs.(fuel and air filter was done last mo...
February 26, 2010
2005 Chrysler Town & Country (Van) LX 3.3L No Start, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2C4GP44R35
P0300: random cylinder misfire. ... yesterday on a tow truck with complaint of no start. Sent a bunch of kids out to push it in. Ended up starting right up and he drove it in. since then it has started everytime we tried it. Drives good as well. Check engine light was on so I scanned it and ...
February 26, 2010
1999 GMC Safari SL 4.3L Cuts out, Misfire
P0300: Multiple Cylinder Misfire Detected. Hot or cold, intermittent misfire ALL cyls. Checked data w/ Modis = Good. CAT was tested @ exhaust shop = Good. MIL doesn't come on w/ KOEO allthe time. If I turn key off and wait 15 sec's, MIL comes on, KOEO. Leaning toward VCM replacement. Been looking @ thi...
February 28, 2010