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P0300 Diagnostic Trouble Code Discussion for August 2004

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
1999 Volkswagen Jetta GLS 2.0L Misfire, MIL Lamp on, Starts Runs, & Dies VIN: 3VWSA29M3X
P0300: Random Misfire. Hey Gang, This car came to me on the hook, The engine will start run 2 or 3 seconds then dies. I thought simple, Change out the fuel filter that the car was born with. No luck. On another note, these late modle VW's with that fuse pannel on top of the batte...
August 03, 2004
1995 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1GNDT13W7S
P0300: Random Cylinder Misfire Detected. Cyl's 2, 4, & 6 were not getting fuel while 1, 3, & 5 were showing rich condition. Replaced all plugs and CFI unit. All cylinders are firing now, but have a miss (PO300) and the only cylinder that will show a misfire code is #5. Cylinder #5 has 130 PSI...
August 10, 2004
1999 GMC K1500 Suburban SLE 5.7L No Start VIN: 1GKFK16R4X
P0300: Multiple Cylinder Misfire Detected. Hi there. I have this no start condition. It has spark fuel pressure is 38 psi and it will start with starting fluid.It just wont stay running. Check for injector pulse and can see them working but it still wont start. I have noticed that fuel preasurre bleeds...
August 10, 2004
2002 Chevrolet Venture 3.4L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on
P0300: Multiple Cylinder Misfire Detected. ... code p0300 and lean code (don't have it here) bank 1. engine would start to misfire when warmed up. luckily it was real low on gas and went for test drive and felt like it was running out. put in 5 gallons and ran a lot better. Installed fuel gauge and too...
August 11, 2004
2002 Dodge Intrepid SE 2.7L Poor Idle Quality, Surge VIN: 2C3HH46RX2
P0300: Multiple Cylinder Misfire Detected. Vehicle came in for tuneup {90,000 km}with check engine light on,was missing very bad,so we tuned it up and checked for codes {po300,po306}.The miss was still there after the tune up.Vehicle will sometimes straighten out and run smooth.Checked codes -#6cyl mis...
August 11, 2004
1999 GMC K1500 Suburban SLE 5.7L No Start VIN: 1GKFK16R4X
P0300: Multiple Cylinder Misfire Detected. Hi there. I have this no start condition. It has spark fuel pressure is 38 psi and it will start with starting fluid.It just wont stay running. Check for injector pulse and can see them working but it still wont start. I have noticed that fuel preasurre bleeds...
August 11, 2004
1996 Chevrolet C1500 Suburban 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNEC16R0X
P0300: Multiple Cylinder Misfire Detected. Well, every diagnostic we have run has shown components/ results good. Scope shows even spark strength/dwell, injector leakdown, all injectors within 1 psi of each other. backprobed injector circuit, operating as designed. checked injector control circuit back...
August 12, 2004
1996 Chevrolet C1500 5.7L Misfire, MIL Lamp on VIN: 2GBEC19R5T
P0300: Multiple Cylinder Misfire Detected. Vehicle has a definite bad B1/S2 HO2 sensor. Exhibits a missfire, mostly on cyl's 5, 6 &7. It will occur after it warms up to above 150 deg. F. and shows up in park accel lightly from 2500 to 3000 rpms and driving, on light accel or sustaining speed on sli...
August 12, 2004
1995 Dodge Neon 2.0L Misfire VIN: 1CDE 496FG
P0300: Mutiple engine misfire. Hi fellow techs. This Neon has a misfire code for #1 cylinder. The problem occures mostly after a hard right turn esp if your not coming to a total stop.It will miss 1 to 4 times max and then clear. The problem has also happened when accel hard in reverse and...
August 17, 2004
1997 Chevrolet Venture 3.4L Misfire, MIL Lamp on VIN: 1GHDX06E4V
P0300: Multiple Cylinder Misfire Detected. ... have came in with the same problem this week. The code P0300 is the only code in the van but it is just cylider #6 misfiring. Upon cold starup, cylinder 6 will count up 30-100 misfires in the first 10-15 seconds than run fine. It has new wires, plugs fuel ...
August 18, 2004
2002 GMC Savana 3500 5.7L Misfire, MIL Lamp on VIN: 1GDHG31RX2
P0300: Multiple Cylinder Misfire Detected. Need help all you gm techs. This truck was brought to us from Baltimore Md with a miss and mil on. We ran compression check and found no compression on #4 cylinder all others had 150 to 155 psi. Removed head and replaced burnt exhaust valve. After putting truc...
August 19, 2004
1998 Buick Century Custom 3.1L Misfire, MIL Lamp on VIN: 2G4WS52M4W
P0300: Multiple Engine Misfire Detected. Vehicle came into the shop with the mil light on. Code P300 for random misfire. Check Misfire History and found one cylinder had a History of misfires. Cyl # 4. Vehicle wasn't missing at all by the time it came to the shop. Checked Ignition system wires and co...
August 24, 2004
1998 Chevrolet K1500 Suburban 5.7L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3GKFK16R4W
P0300: Multiple Cylinder Misfire Detected. vehicle will run fine intermittantly but when it runs bad i have misfires on cylinders 2 4 6 8 the left bank runs fine/ spark plugs are getting fuel fouled. i have found the wiring for the bank 2 sensor 1 pinched between the engine and transmission, i replaced...
August 28, 2004
1999 Volkswagen Jetta GLS 2.0L Misfire, MIL Lamp on, Starts Runs, & Dies VIN: 3VWSA29M3X
P0300: Random Misfire. Hey Gang, This car came to me on the hook, The engine will start run 2 or 3 seconds then dies. I thought simple, Change out the fuel filter that the car was born with. No luck. On another note, these late modle VW's with that fuse pannel on top of the batte...
August 03, 2004
1995 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1GNDT13W7S
P0300: Random Cylinder Misfire Detected. Cyl's 2, 4, & 6 were not getting fuel while 1, 3, & 5 were showing rich condition. Replaced all plugs and CFI unit. All cylinders are firing now, but have a miss (PO300) and the only cylinder that will show a misfire code is #5. Cylinder #5 has 130 PSI...
August 10, 2004
1999 GMC K1500 Suburban SLE 5.7L No Start VIN: 1GKFK16R4X
P0300: Multiple Cylinder Misfire Detected. Hi there. I have this no start condition. It has spark fuel pressure is 38 psi and it will start with starting fluid.It just wont stay running. Check for injector pulse and can see them working but it still wont start. I have noticed that fuel preasurre bleeds...
August 10, 2004
2002 Chevrolet Venture 3.4L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on
P0300: Multiple Cylinder Misfire Detected. ... code p0300 and lean code (don't have it here) bank 1. engine would start to misfire when warmed up. luckily it was real low on gas and went for test drive and felt like it was running out. put in 5 gallons and ran a lot better. Installed fuel gauge and too...
August 11, 2004
2002 Dodge Intrepid SE 2.7L Poor Idle Quality, Surge VIN: 2C3HH46RX2
P0300: Multiple Cylinder Misfire Detected. Vehicle came in for tuneup {90,000 km}with check engine light on,was missing very bad,so we tuned it up and checked for codes {po300,po306}.The miss was still there after the tune up.Vehicle will sometimes straighten out and run smooth.Checked codes -#6cyl mis...
August 11, 2004
1999 GMC K1500 Suburban SLE 5.7L No Start VIN: 1GKFK16R4X
P0300: Multiple Cylinder Misfire Detected. Hi there. I have this no start condition. It has spark fuel pressure is 38 psi and it will start with starting fluid.It just wont stay running. Check for injector pulse and can see them working but it still wont start. I have noticed that fuel preasurre bleeds...
August 11, 2004
1996 Chevrolet C1500 Suburban 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNEC16R0X
P0300: Multiple Cylinder Misfire Detected. Well, every diagnostic we have run has shown components/ results good. Scope shows even spark strength/dwell, injector leakdown, all injectors within 1 psi of each other. backprobed injector circuit, operating as designed. checked injector control circuit back...
August 12, 2004
1996 Chevrolet C1500 5.7L Misfire, MIL Lamp on VIN: 2GBEC19R5T
P0300: Multiple Cylinder Misfire Detected. Vehicle has a definite bad B1/S2 HO2 sensor. Exhibits a missfire, mostly on cyl's 5, 6 &7. It will occur after it warms up to above 150 deg. F. and shows up in park accel lightly from 2500 to 3000 rpms and driving, on light accel or sustaining speed on sli...
August 12, 2004
1995 Dodge Neon 2.0L Misfire VIN: 1CDE 496FG
P0300: Mutiple engine misfire. Hi fellow techs. This Neon has a misfire code for #1 cylinder. The problem occures mostly after a hard right turn esp if your not coming to a total stop.It will miss 1 to 4 times max and then clear. The problem has also happened when accel hard in reverse and...
August 17, 2004
1997 Chevrolet Venture 3.4L Misfire, MIL Lamp on VIN: 1GHDX06E4V
P0300: Multiple Cylinder Misfire Detected. ... have came in with the same problem this week. The code P0300 is the only code in the van but it is just cylider #6 misfiring. Upon cold starup, cylinder 6 will count up 30-100 misfires in the first 10-15 seconds than run fine. It has new wires, plugs fuel ...
August 18, 2004
2002 GMC Savana 3500 5.7L Misfire, MIL Lamp on VIN: 1GDHG31RX2
P0300: Multiple Cylinder Misfire Detected. Need help all you gm techs. This truck was brought to us from Baltimore Md with a miss and mil on. We ran compression check and found no compression on #4 cylinder all others had 150 to 155 psi. Removed head and replaced burnt exhaust valve. After putting truc...
August 19, 2004
1998 Buick Century Custom 3.1L Misfire, MIL Lamp on VIN: 2G4WS52M4W
P0300: Multiple Engine Misfire Detected. Vehicle came into the shop with the mil light on. Code P300 for random misfire. Check Misfire History and found one cylinder had a History of misfires. Cyl # 4. Vehicle wasn’t missing at all by the time it came to the shop. Checked Ignition system wires and co...
August 24, 2004
1998 Chevrolet K1500 Suburban 5.7L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3GKFK16R4W
P0300: Multiple Cylinder Misfire Detected. vehicle will run fine intermittantly but when it runs bad i have misfires on cylinders 2 4 6 8 the left bank runs fine/ spark plugs are getting fuel fouled. i have found the wiring for the bank 2 sensor 1 pinched between the engine and transmission, i replaced...
August 28, 2004