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P0300 Diagnostic Trouble Code Discussion for October 2005

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2000 Toyota Corolla VE 1.8L MIL Lamp on VIN: 1NXBR12E4Y
P0300: Multiple Cylinder Misfire Detected. ... with the s.e.s. light on. We scanned and retrieved code p03oo random misfire. The only symptom the customer was having was a start and stall problem in the morning. The car would start right back up and was fine the rest of the day. We cleared the code and...
October 03, 2005
1996 Dodge Avenger ES 2.5L MIL Lamp on VIN: 4B3AU52NOT
P0300: Multiple Cylinder Misfire Detected. Evening Techs This car was giving to one our customers with a MIL light on and the car ran fine. what I found was at around 60 MPH at cruise the mil light will start flashing, but car runs fine-didn"t feel any miss or stumble. I pulled over and cleared co...
October 05, 2005
1999 GMC Sierra 1500 SL 4.3L Misfire VIN: 1GTEC1AW6X
P0300: Multiple Cylinder Misfire Detected. Vehicle has missfire under minor load until hot, missfire only present above 8 mph. If wheels are not turning vehicle runs fine.Injectors have been cleaned, new cap, plugs, wires. Thanks for the help
October 05, 2005
2001 Pontiac Grand Am GT 3.4L Misfire, MIL Lamp on VIN: 1G2NV52EX1
P0300: Multiple Cylinder Misfire Detected. ... Grand Am GT. First concern was for a no start a few weeks ago. Diagnosed as a bad fuel pump. Fuel pump was replaced and ran excellent. Customer took vehicle and returned a week later with Check engine light on and flashing. Pulled codes, found code p0300 f...
October 07, 2005
2000 Cadillac Seville SLS 4.6L Misfire, MIL Lamp on VIN: 1G6KS54Y2Y
P0300: Engine Misfire Detected. i put a used engine in this car because it sucked water in through the air filter and exploded the block. i have the car running but it misses at idle on cylinders 2 4 6 8 acording to the tech 2. if i unplug the fuel injectors while its running i can have it r...
October 10, 2005
1997 Toyota Camry CE 3.0L Poor Idle Quality, Hesitation VIN: 4T1BF22K3V
P0300: Multiple Cylinder Misfire Detected. Hello everyone, I've got one that's got me stumped. A fellow technician installed a rear main seal into this vehicle, test drove, and said it ran good. Customer comes back in 4 days later and says it is running terrible has to be something with what we did. ...
October 10, 2005
1996 GMC C1500 Sierra SL 4.3L Misfire VIN: 1GTEC14W8T
P0300: Multiple Cylinder Misfire Detected. Hi GM Techs.Vehicles misfires on accel. idles ok but when you give it gas it misfires on all cyls. fuel pressure spec is 60-66 psi . key on eng off fuel pressure is 58 psi . running about 55-56 psi . Is this low enough to cause a misfire? I have heard the popp...
October 11, 2005
2000 Ford Explorer XLS 4.0L Misfire, MIL Lamp on VIN: 5FMYU60E6Y
P0300: multiple cyl misfire. ... C/E LIGHT ON AFTER HARD ACCELERATION. TESTED IGNITION & FUEL PRESSURE ALONG WITH PRESSURE DROP. AFTER DUPLICATING PROBLEM, PERFORMED COMPRESSION TEST & FOUND WEAK VALVE SPRINGS. REPLACED SPRINGS, PLUGS & IGNITION CABLES. AFTER REPAIR P0301&...
October 12, 2005
2000 Toyota Camry CE 2.2L Hesitation, Surge, Cuts out, Stall VIN: JT2BG22K5Y
P0300: Multiple Cylinder Misfire Detected. ... stop, after its warm you get a surge, like to much egr, or a tps problem. disconnected egr, still there, checked tps, test good. hooked up scanner and got codes p1130 b1s1 sensor malfunction and p0300 random misfire. went to...
October 12, 2005
1999 Mercedes-Benz ML430 4.3L Hesitation, Surge, MIL Lamp on VIN: 4JGAB72E3X
P0300: Random misfire. Dear Techs: Vehicle comes in with complains of Mil light on and lack of power. Test drove it and found the vehicle can not climb any further than 40km/h, hardly drive it back to the shop, scan test, found 300, 305-308 code (miss fire codes) on one side of the...
October 15, 2005
1999 Mercedes-Benz ML430 4.3L Hesitation, Surge, MIL Lamp on VIN: 4JGAB72E3X
P0300: Random misfire. Dear Techs: Vehicle comes in with complains of Mil light on and lack of power. Test drove it and found the vehicle can not climb any further than 40km/h, hardly drive it back to the shop, scan test, found 300, 305-308 code (miss fire codes) on one side of the...
October 18, 2005
1997 GMC K1500 Sierra SL 4.3L Cuts out, Misfire, MIL Lamp on VIN: 1GTEK19W0V
P0300: Multiple Cylinder Misfire Detected. I need some help on this one. This truck came in to the shop with check engine light on and fuel pump screaming. I told customer we have to fix the obvious noisey fuel pump first, which we did with an AC Delco pump and new fuel filter. Cleared codes to aid fur...
October 19, 2005
1997 Chevrolet Cavalier 2.2L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: IGIJCI246V
P0300: Multiple Engine Misfire Detected. The problem is rough idling, sometimes severe hesitation, sometimes slight hesitation, and occasional stall. The fuel trims are always extremely low (-40) indicating a correction for a rich mixture which seems to be the case, but not to the point of smoking bl...
October 21, 2005
1997 Dodge Ram 1500 Truck 5.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1B7HF16ZXV
P0300: Multiple Cylinder Misfire Detected. ... hard to start problem.customer asked for a starting and charging system check it checked out ok besides a bad belt and tens. he came back on tuesday to have belt and tens. replaced he asked if we could check his dist. cap due to a broken screw. we replaced...
October 21, 2005
1998 Chevrolet K2500 Suburban 5.7L Hesitation, Misfire, MIL Lamp on VIN: 3GNGK26R1W
P0300: Multiple Cylinder Misfire Detected. Greetings. This is my first request for help. We put an engine (Motorworks) in this suburban about 4 months/5000 ago for an out of town customer. The customer got about 15 miles out of town with the new engine and the check engine light came on. It was past c...
October 22, 2005
1997 Dodge Ram 1500 Truck 5.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1B7HF16ZXV
P0300: Multiple Cylinder Misfire Detected. ... hard to start problem.customer asked for a starting and charging system check it checked out ok besides a bad belt and tens. he came back on tuesday to have belt and tens. replaced he asked if we could check his dist. cap due to a broken screw. we replaced...
October 22, 2005
1997 Oldsmobile 88 Royale 3.8L Misfire, MIL Lamp on VIN: 1G3HN52KXV
P0300: Engine Misfire Detected. Yhis car has all of us baffled misfire counter for #6 cyl climbs high and does misfire. Have tried (yes I threw parts at it ecspecially after commons were out) spark plug, cable, 3x6 coil, reman fuel injector, used pcm. Engine misfires at idle and if throttle ...
October 25, 2005
1997 Oldsmobile 88 Royale 3.8L Misfire, MIL Lamp on VIN: 1G3HN52KXV
P0300: Engine Misfire Detected. Yhis car has all of us baffled misfire counter for #6 cyl climbs high and does misfire. Have tried (yes I threw parts at it ecspecially after commons were out) spark plug, cable, 3x6 coil, reman fuel injector, used pcm. Engine misfires at idle and if throttle ...
October 26, 2005
1997 Oldsmobile Aurora 4.0L Misfire VIN: 1G3GR62C0V
P0300: Multiple Cylinder Misfire Detected. Ok, this one is eating my lunch. Have a misfire on cylinder number 6. All other cylinders good. Misfire does not follow ignition wire, coil, or injector when swaped. Installed a new plug first thing. Do these vehicles have any problem with intake manifolds or ...
October 26, 2005
2000 Audi S4 2.7L Misfire VIN: WAUDD68D0Y
P0300: random missfire. having a little missfire problem with this car. It is missfiring on cyl #1,2,3,&4. Customer was here about a week ago with #5 missing and a month before that with #1 missing. But no o2 fault then. Checked for carbon and all cyl's looked fine, last week. It...
October 28, 2005
2001 Chevrolet Astro LS 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GNDM19W11
P0300: Multiple Cylinder Misfire Detected. hello everyone, we have this astro van that came in with a no start,we replaced the cap rotor and wires due to misfiring and wetness under cap.van started but runs on only 3 cyls.cyls #2,3 & 5 are not working.customer had no other problems before no start....
October 28, 2005
1998 Lexus ES300 3.0L Misfire, MIL Lamp on VIN: JT8BF28G0W
P0300: Multiple Cylinder Misfire Detected. Ok Im stumped on this one... I have this lexus that the best description the customer can tell me is that this problem happens after being driven for 50+ miles. I was able to duplicate it once. It misfires the MIL light comes on and the above codes are stored....
October 28, 2005
1997 GMC C1500 Sierra SL 5.7L Poor Idle Quality, Misfire, MIL Lamp on
P0300: Multiple Cylinder Misfire Detected. ... misfiring, pulled code P0300. found #5 spark plug fouled with fuel deposits. Vehicle had Bosch Platinum plugs, original wires,cap, rotor and fuel filter, air filter was clogged and PCV valve was not funtioning. Replaced #5 spark plug with AC Delco Platinum...
October 30, 2005
2001 BMW 330Ci 3.0L Misfire, MIL Lamp on VIN: WBABS53491
P0300: Random multiple misfire. Hello, This BMW came in with 6 codes, all of which are shown below. The customer says the car runs bad when the light is on, but the light will go off on its own and the car will run fine. I cannot get the codes to reset or the vehicle to run poorly. The lea...
October 31, 2005
2000 Toyota Corolla VE 1.8L MIL Lamp on VIN: 1NXBR12E4Y
P0300: Multiple Cylinder Misfire Detected. ... with the s.e.s. light on. We scanned and retrieved code p03oo random misfire. The only symptom the customer was having was a start and stall problem in the morning. The car would start right back up and was fine the rest of the day. We cleared the code and...
October 03, 2005
1996 Dodge Avenger ES 2.5L MIL Lamp on VIN: 4B3AU52NOT
P0300: Multiple Cylinder Misfire Detected. Evening Techs This car was giving to one our customers with a MIL light on and the car ran fine. what I found was at around 60 MPH at cruise the mil light will start flashing, but car runs fine-didn"t feel any miss or stumble. I pulled over and cleared co...
October 05, 2005
1999 GMC Sierra 1500 SL 4.3L Misfire VIN: 1GTEC1AW6X
P0300: Multiple Cylinder Misfire Detected. Vehicle has missfire under minor load until hot, missfire only present above 8 mph. If wheels are not turning vehicle runs fine.Injectors have been cleaned, new cap, plugs, wires. Thanks for the help
October 05, 2005
2001 Pontiac Grand Am GT 3.4L Misfire, MIL Lamp on VIN: 1G2NV52EX1
P0300: Multiple Cylinder Misfire Detected. ... Grand Am GT. First concern was for a no start a few weeks ago. Diagnosed as a bad fuel pump. Fuel pump was replaced and ran excellent. Customer took vehicle and returned a week later with Check engine light on and flashing. Pulled codes, found code p0300 f...
October 07, 2005
2000 Cadillac Seville SLS 4.6L Misfire, MIL Lamp on VIN: 1G6KS54Y2Y
P0300: Engine Misfire Detected. i put a used engine in this car because it sucked water in through the air filter and exploded the block. i have the car running but it misses at idle on cylinders 2 4 6 8 acording to the tech 2. if i unplug the fuel injectors while its running i can have it r...
October 10, 2005
1997 Toyota Camry CE 3.0L Poor Idle Quality, Hesitation VIN: 4T1BF22K3V
P0300: Multiple Cylinder Misfire Detected. Hello everyone, I've got one that's got me stumped. A fellow technician installed a rear main seal into this vehicle, test drove, and said it ran good. Customer comes back in 4 days later and says it is running terrible has to be something with what we did. ...
October 10, 2005
1996 GMC C1500 Sierra SL 4.3L Misfire VIN: 1GTEC14W8T
P0300: Multiple Cylinder Misfire Detected. Hi GM Techs.Vehicles misfires on accel. idles ok but when you give it gas it misfires on all cyls. fuel pressure spec is 60-66 psi . key on eng off fuel pressure is 58 psi . running about 55-56 psi . Is this low enough to cause a misfire? I have heard the popp...
October 11, 2005
2000 Ford Explorer XLS 4.0L Misfire, MIL Lamp on VIN: 5FMYU60E6Y
P0300: multiple cyl misfire. ... C/E LIGHT ON AFTER HARD ACCELERATION. TESTED IGNITION & FUEL PRESSURE ALONG WITH PRESSURE DROP. AFTER DUPLICATING PROBLEM, PERFORMED COMPRESSION TEST & FOUND WEAK VALVE SPRINGS. REPLACED SPRINGS, PLUGS & IGNITION CABLES. AFTER REPAIR P0301&...
October 12, 2005
2000 Toyota Camry CE 2.2L Hesitation, Surge, Cuts out, Stall VIN: JT2BG22K5Y
P0300: Multiple Cylinder Misfire Detected. ... stop, after its warm you get a surge, like to much egr, or a tps problem. disconnected egr, still there, checked tps, test good. hooked up scanner and got codes p1130 b1s1 sensor malfunction and p0300 random misfire. went to...
October 12, 2005
1999 Mercedes-Benz ML430 4.3L Hesitation, Surge, MIL Lamp on VIN: 4JGAB72E3X
P0300: Random misfire. Dear Techs: Vehicle comes in with complains of Mil light on and lack of power. Test drove it and found the vehicle can not climb any further than 40km/h, hardly drive it back to the shop, scan test, found 300, 305-308 code (miss fire codes) on one side of the...
October 15, 2005
1999 Mercedes-Benz ML430 4.3L Hesitation, Surge, MIL Lamp on VIN: 4JGAB72E3X
P0300: Random misfire. Dear Techs: Vehicle comes in with complains of Mil light on and lack of power. Test drove it and found the vehicle can not climb any further than 40km/h, hardly drive it back to the shop, scan test, found 300, 305-308 code (miss fire codes) on one side of the...
October 18, 2005
1997 GMC K1500 Sierra SL 4.3L Cuts out, Misfire, MIL Lamp on VIN: 1GTEK19W0V
P0300: Multiple Cylinder Misfire Detected. I need some help on this one. This truck came in to the shop with check engine light on and fuel pump screaming. I told customer we have to fix the obvious noisey fuel pump first, which we did with an AC Delco pump and new fuel filter. Cleared codes to aid fur...
October 19, 2005
1997 Chevrolet Cavalier 2.2L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: IGIJCI246V
P0300: Multiple Engine Misfire Detected. The problem is rough idling, sometimes severe hesitation, sometimes slight hesitation, and occasional stall. The fuel trims are always extremely low (-40) indicating a correction for a rich mixture which seems to be the case, but not to the point of smoking bl...
October 21, 2005
1997 Dodge Ram 1500 Truck 5.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1B7HF16ZXV
P0300: Multiple Cylinder Misfire Detected. ... hard to start problem.customer asked for a starting and charging system check it checked out ok besides a bad belt and tens. he came back on tuesday to have belt and tens. replaced he asked if we could check his dist. cap due to a broken screw. we replaced...
October 21, 2005
1998 Chevrolet K2500 Suburban 5.7L Hesitation, Misfire, MIL Lamp on VIN: 3GNGK26R1W
P0300: Multiple Cylinder Misfire Detected. Greetings. This is my first request for help. We put an engine (Motorworks) in this suburban about 4 months/5000 ago for an out of town customer. The customer got about 15 miles out of town with the new engine and the check engine light came on. It was past c...
October 22, 2005
1997 Dodge Ram 1500 Truck 5.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1B7HF16ZXV
P0300: Multiple Cylinder Misfire Detected. ... hard to start problem.customer asked for a starting and charging system check it checked out ok besides a bad belt and tens. he came back on tuesday to have belt and tens. replaced he asked if we could check his dist. cap due to a broken screw. we replaced...
October 22, 2005
1997 Oldsmobile 88 Royale 3.8L Misfire, MIL Lamp on VIN: 1G3HN52KXV
P0300: Engine Misfire Detected. Yhis car has all of us baffled misfire counter for #6 cyl climbs high and does misfire. Have tried (yes I threw parts at it ecspecially after commons were out) spark plug, cable, 3x6 coil, reman fuel injector, used pcm. Engine misfires at idle and if throttle ...
October 25, 2005
1997 Oldsmobile 88 Royale 3.8L Misfire, MIL Lamp on VIN: 1G3HN52KXV
P0300: Engine Misfire Detected. Yhis car has all of us baffled misfire counter for #6 cyl climbs high and does misfire. Have tried (yes I threw parts at it ecspecially after commons were out) spark plug, cable, 3x6 coil, reman fuel injector, used pcm. Engine misfires at idle and if throttle ...
October 26, 2005
1997 Oldsmobile Aurora 4.0L Misfire VIN: 1G3GR62C0V
P0300: Multiple Cylinder Misfire Detected. Ok, this one is eating my lunch. Have a misfire on cylinder number 6. All other cylinders good. Misfire does not follow ignition wire, coil, or injector when swaped. Installed a new plug first thing. Do these vehicles have any problem with intake manifolds or ...
October 26, 2005
2000 Audi S4 2.7L Misfire VIN: WAUDD68D0Y
P0300: random missfire. having a little missfire problem with this car. It is missfiring on cyl #1,2,3,&4. Customer was here about a week ago with #5 missing and a month before that with #1 missing. But no o2 fault then. Checked for carbon and all cyl's looked fine, last week. It...
October 28, 2005
2001 Chevrolet Astro LS 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GNDM19W11
P0300: Multiple Cylinder Misfire Detected. hello everyone, we have this astro van that came in with a no start,we replaced the cap rotor and wires due to misfiring and wetness under cap.van started but runs on only 3 cyls.cyls #2,3 & 5 are not working.customer had no other problems before no start....
October 28, 2005
1998 Lexus ES300 3.0L Misfire, MIL Lamp on VIN: JT8BF28G0W
P0300: Multiple Cylinder Misfire Detected. Ok Im stumped on this one... I have this lexus that the best description the customer can tell me is that this problem happens after being driven for 50+ miles. I was able to duplicate it once. It misfires the MIL light comes on and the above codes are stored....
October 28, 2005
1997 GMC C1500 Sierra SL 5.7L Poor Idle Quality, Misfire, MIL Lamp on
P0300: Multiple Cylinder Misfire Detected. ... misfiring, pulled code P0300. found #5 spark plug fouled with fuel deposits. Vehicle had Bosch Platinum plugs, original wires,cap, rotor and fuel filter, air filter was clogged and PCV valve was not funtioning. Replaced #5 spark plug with AC Delco Platinum...
October 30, 2005
2001 BMW 330Ci 3.0L Misfire, MIL Lamp on VIN: WBABS53491
P0300: Random multiple misfire. Hello, This BMW came in with 6 codes, all of which are shown below. The customer says the car runs bad when the light is on, but the light will go off on its own and the car will run fine. I cannot get the codes to reset or the vehicle to run poorly. The lea...
October 31, 2005