P0300 Diagnostic Trouble Code Discussion for February 2004
Multiple Misfire Detected
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| Help Request | Posted | |
| 1997 Chevrolet Astro 4.3L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNDM19W0V P0300: Multiple Cylinder Misfire Detected. Have always had the same code,since vehicle first arrived. Previously, on scan tool data stream, misfire counts would show up for all cylinders, all at a varying rate. Now, data stream indicates misfire on cyl.#3, but will not set po301 code. Checked compressi... |
February 03, 2004 | |
| 1996 Chevrolet C1500 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2GCE19R4T1 P0300: Multiple Cylinder Misfire Detected. i need some extreme help, i have been struggling with the timing of this veh for about two days, when i took off the intake plenum i marked the distributor so it will be same as it came off, but this time this veh. is missing in all different cylinders, i have... |
February 04, 2004 | |
| 1998 Chevrolet Cavalier Z24 2.4L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 1G1JF12TXW P0300: Multiple Engine Misfire Detected. OK GUYS HERE WE GO AGAIN, THIS CAR CAME IN ON THE HOOK, IT WILL START AND RUN ,BUT ACTS LIKE IT IS FLOODED. IT SEEMS TO BE RUNNING ON 2 CYL. AND MY OTC GENISYS CONFIRMS #2&4 CYLINDERS MISFIREING ALWAYS, WE HAVE SWITCHED COILS,INJECTORS,PLUGS,HAVE NOID AT A... |
February 04, 2004 | |
| 1998 Ford E-150 Econoline 4.2L Surge, Misfire, MIL Lamp on VIN: 1FTRE1420W P0300: random misfire. Several codes - PO340 cam sensor ck fault. PO171 system lean bank 1 PO174 system lean bank 2 PO300 random misfire. Erased codes and they came back after driving two times. Test drove felt like engine miss, could hear spark knock with engine cover off. Check d... |
February 04, 2004 | |
| 1998 Chevrolet Cavalier Z24 2.4L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 1G1JF12TXW P0300: Multiple Engine Misfire Detected. OK GUYS HERE WE GO AGAIN, THIS CAR CAME IN ON THE HOOK, IT WILL START AND RUN ,BUT ACTS LIKE IT IS FLOODED. IT SEEMS TO BE RUNNING ON 2 CYL. AND MY OTC GENISYS CONFIRMS #2&4 CYLINDERS MISFIREING ALWAYS, WE HAVE SWITCHED COILS,INJECTORS,PLUGS,HAVE NOID AT A... |
February 05, 2004 | |
| 1998 Ford E-150 Econoline 4.2L Surge, Misfire, MIL Lamp on VIN: 1FTRE1420W P0300: random misfire. Several codes - PO340 cam sensor ck fault. PO171 system lean bank 1 PO174 system lean bank 2 PO300 random misfire. Erased codes and they came back after driving two times. Test drove felt like engine miss, could hear spark knock with engine cover off. Check d... |
February 05, 2004 | |
| 1996 Dodge Grand Caravan SE 3.3L Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1B4GP44R3T P0300: Multiple Cylinder Misfire Detected. I hate to say we ended up throwing parts at this one. It has a new ECM, FF, Wires, coil, crank sensor. The vehicle came in with a 300 code. Sprayed down wires and coil, with water and it was arching everywhere, so we replaced them. Car ran fine for us took it ... |
February 06, 2004 | |
| 1996 GMC K1500 Suburban 5.7L Misfire, MIL Lamp on VIN: 1GKFK16R6T P0300: Multiple Cylinder Misfire Detected. Friends, this is a real hair-puller. The truck came in with a misfire code and freeze frame data for #5 misfire. it is bad enough that the MIL will flash at idle. off idle the counter will go down to 0 while driving, as soon as you come back to idle, it will s... |
February 13, 2004 | |
| 1997 Pontiac Grand Am SE 2.4L Poor Idle Quality VIN: 1G2NE12T7V P0300: Multiple Cylinder Misfire Detected. HELP! This veh has a rough idle with miss fires and a rich exhaust. Off idle the veh runs fine. We have replaced coils, coil tower with boots, plugs, map sensor, check fuel pressure, did a oil pressure test due to tsb every thing was ok. o2 sensor was switchin... |
February 13, 2004 | |
| 1998 Chevrolet K1500 Cheyenne 5.7L Misfire VIN: 2GCEK19R8W P0300: Multiple Cylinder Misfire Detected. Help Guys! 1998 Checvy Z71 350 brought in missing on cylinders 5 and 7. Performed standard tests and results below. Compression 5-170 7-175 Fuel pressure - 61PSI Injector pressure drop test -OK Swapped - Cap(2),rotor,plugs. Removed plenum and commanded inject... |
February 14, 2004 | |
| 1998 Chevrolet K1500 Cheyenne 5.7L Misfire VIN: 2GCEK19R8W P0300: Multiple Cylinder Misfire Detected. Help Guys! 1998 Checvy Z71 350 brought in missing on cylinders 5 and 7. Performed standard tests and results below. Compression 5-170 7-175 Fuel pressure - 61PSI Injector pressure drop test -OK Swapped - Cap(2),rotor,plugs. Removed plenum and commanded inject... |
February 17, 2004 | |
| 1996 Chevrolet Monte Carlo LS 3.1L Misfire, MIL Lamp on VIN: 2G1WW12MOT P0300: Multiple Engine Misfire Detected. ... with a P0300 misfire. The mis is always on cylinder #4. Originally I found two injectors out of specs, all six were replaced. When it came back the second time I found that the fuel pressure regulator was leaking. When I followed the vacuum line back to it... |
February 19, 2004 | |
| 1996 Chevrolet K1500 Suburban 5.7L Misfire, MIL Lamp on VIN: 1GKFK16R8T P0300: Multiple Cylinder Misfire Detected. wE HAVE DRIVEN VEHICLE AND WE ARE ABLE TO DUPLICATE THE MISFIRE. WHILE WATCHING THE SCANNER AND WHILE ACCELERATING ENGINE HAD MISFIRES ON ALL CYLINDERS AND IT SEEMED LIKE THE ENGINE CUT OUT COMPLETELY FOR A SECOND. THEN IT WENT AWAY, BUT THEN HAD MISFIRES AGAI... |
February 20, 2004 | |
| 2000 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP54K7Y P0300: Engine Misfire Detected. towed in no-start,i have no cam/crank readings on scanner.in testing i found the dis fuse blown,ohming wiring to ground all seems ok until i plugged ignition module in.seems to go to groung when pluggd in??replaced module with new,same problem,bad new module? |
February 21, 2004 | |
| 2000 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP54K7Y P0300: Engine Misfire Detected. towed in no-start,i have no cam/crank readings on scanner.in testing i found the dis fuse blown,ohming wiring to ground all seems ok until i plugged ignition module in.seems to go to groung when pluggd in??replaced module with new,same problem,bad new module? |
February 22, 2004 | |
| 1996 Mercury Villager GS 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4M2DV11W4T P0300: Multiple Misfire Detected. Hello fellow techs. I have one here that is causing me to bang my head against the wall. Its a Mercury Villager, which is the same as a Nissan Quest. This thing has a misfire, which is there all the time and is there especially under decel or just barely off i... |
February 24, 2004 | |
| 1998 GMC Yukon SLE 5.7L Misfire, MIL Lamp on VIN: 1GKEK13R9W P0300: Multiple Cylinder Misfire Detected. Vehicle has returned to shop numerous times for MIL lamp on, original misfires were obvious poppet nozzle issues as injector service cured problem temporarily. Repeated catalyst efficiency codes were eliminated after customer had converters replaced. After all... |
February 25, 2004 | |
| 1997 Jeep Wrangler Sport 4.0L Misfire, MIL Lamp on, power loss VIN: 1J4FY19S1V P0300: Multiple Cylinder Misfire Detected. Vehicle came in with problem of stalling. Did it twice in 10 days says customer. Both times going up a hill. Codes were as noted (300-302-303) I checked the basics, primary and secondary ignition, all good. Recent tune up completed. Cleared codes and test drov... |
February 25, 2004 | |
| 1999 Mazda Protege ES 1.8L Poor Idle Quality, Hesitation, MIL Lamp on VIN: JM1BJ2210X P0300: Multiple Misfire Detected. car came in first time with check engine light on, code- p0420-cat. effic.low, po300- random misfire. found champion plugs had been installed. also had new plug wires. installed correct ngk plugs. cleared codes and test drove. run great and no light. came back... |
February 25, 2004 | |
| 1998 Mercedes-Benz ML320 3.2L MIL Lamp on VIN: 4JGAB54E9W P0300: random misfire. Customer is seeking to renew his CA registration. Car 1st came in with check engine light on and codes 130 (O2 b1 s1), 170,173 adaption at limit, and 300-303 misfire on 1-3 bank. We replaced the Maf sensor, plugs, fuel filter (an updated unit was available tha... |
February 25, 2004 | |
| 1998 Toyota 4Runner Limited 3.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: JT3GN87RXW P0300: Multiple Cylinder Misfire Detected. This is my first post. I sure hope you humans can help us. When driving this truck, the MIL will flash for about 15 seconds at a time & put misfire codes in pending. After truck is shut off, then restarted and driven a second trip, the MIL will finally com... |
February 26, 2004 | |
| 2000 Volkswagen Jetta GL 2.0L Poor Idle Quality, Stall VIN: 3VWSSA29M9 P0300: random misfire. Hey guys, Got a VW jetta here that is a little odd. I thought that I would run this past all of you VW experts out there. This Jetta has come in here with a compaint of poor idle, rough running and stall when cold. Once it warms up it is fine. I hooked up my G... |
February 26, 2004 | |
| 1998 Toyota 4Runner Limited 3.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: JT3GN87RXW P0300: Multiple Cylinder Misfire Detected. This is my first post. I sure hope you humans can help us. When driving this truck, the MIL will flash for about 15 seconds at a time & put misfire codes in pending. After truck is shut off, then restarted and driven a second trip, the MIL will finally com... |
February 27, 2004 | |
| 1999 Mitsubishi Eclipse RS 2.0L MIL Lamp on VIN: 4A3AK34Y4X P0300: Random Misfire Detected. Hi friends, This car has the same MIL codes that it had when they took it to the dealer,or atleast one.(see history) Im not sure if the dealer was too lazy to erase them ,and these are old or not. I wish they came with a date on them. The car is'nt acting up n... |
February 28, 2004 |
