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P0300 Diagnostic Trouble Code Discussion for August 2008

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
1999 Audi A4 2.8L Misfire VIN: WAUED28DOX
Hello Techs! I have a problem with this audi a4. It has been into this shop several times for a misfire on cyl,5 and 3. The tech that worked here before me was going after the problem by replacing the coils and plugs and wires, but to no avail. I have tried to...
August 01, 2008
2000 Chevrolet Impala 3.4L Cuts out, Misfire VIN: 2G1WF55E5Y
P0300: Multiple Cylinder Misfire Detected. sorrry guys for the brief description earlier, i was swampd, this car has been a little headach, did all the basic checks fuel,vacuum, spark,fuel trim normal,maf,tps no gltches.. my question was if anyone has encounterd problem like this. the car idles perfect...
August 02, 2008
2000 Jeep Cherokee Sport 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4FF48S8Y
P0300: Multiple Cylinder Misfire Detected. This Jeep came in with MIL on and a slight sputter at idle. Scan to find Random misfire and no. 3 cylinder miss. Checked compression and replaced original spark plugs. Cleared codes and retest. Misfire counters still counting at all cylinders and only at idle....
August 02, 2008
1996 Chevrolet S10 LS 4.3L Misfire, MIL Lamp on VIN: 1GCCS19X7T
P0300: Multiple Engine Misfire Detected. Rebuilt engine about 7,000 miles ago. Recplaced Cam, crank, pistions and block reworked, rings and bearings, heads professionally redone. Engine fired on first try (after proper oil priming). One problem was a cam/crank corelation error (dist. installed one to...
August 03, 2008
1996 Toyota Corolla DX 1.8L Hesitation, Surge, Cuts out, Misfire VIN: 1NXBB02E71
P0300: Multiple Cylinder Misfire Detected. I didn't have much hair to begin with before this episode. Good customer, fixes car anytime it needs something. Out of nowhere it starts to buck and surge and dies. Her brother in law drags it home and adds gas and changes the fuel filter thinking it was bad. ...
August 03, 2008
1998 Chevrolet S10 LS 4.3L Misfire VIN: 1GCDT19X6W
P0300: Multiple Engine Misfire Detected. Customer brought it in for the rebuilt heads to be installed We did this without complication. Started up and ran good when done. After it warmed up the check engine light came on and the number 2,4, and 6 cylindersstarted missing. We went through and checked ...
August 04, 2008
1998 Dodge Intrepid ES 3.2L No Start, Misfire, MIL Lamp on VIN: 2B3HD56J4W
P0300: Multiple Cylinder Misfire Detected. ... going down the road intermittently I checked for codes found 4 codes p0300 p0302 p0320 p1598. So I started with p0320 for the ckp checking powers and ground all tested good, i then took it for a road test and hooked my van...
August 06, 2008
2003 Dodge Ram 1500 Truck 5.7L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1D7HU18D43
P0300: Multiple Cylinder Misfire Detected. Hello Everyone, I have this Hemi that I can't figure out. It runs rough and barely idles. It was towed in, you can't get it to stay running real well. I was just wandering if this is something in the PCM or do I need to replace the Electroic Throttle Control ...
August 07, 2008
1999 Isuzu Rodeo LS 3.2L MIL Lamp on VIN: 4S2CK58W7X
P0300: Multiple Cylinder Misfire Detected. This Isuzu runs great...no detectable misfire. If you free rev it or drive it, @ 2500-2900 rpm the c.e.lamp begins to flash. Po300. My Tech 2 doesn't have Isuzu anymore so it's MasterTech w/o.e Honda/Acura software, the misfire counter says #3, #6 only and lik...
August 07, 2008
2004 Isuzu Rodeo S 3.5L No Start, MIL Lamp on VIN: 4S2CK58Y24
P0300: Multiple Cylinder Misfire Detected. ... the truck died while driving. It has three codes stored p0346, p0302, & p0304. cleared the codes and p0346 returns. I scoped both cam sensors and i have a square waves signal on both. Sometimes after i clear the codes and crank it, it will start for 2 ...
August 08, 2008
2000 Nissan Pathfinder LE 3.3L MIL Lamp on, Intermittent misfire VIN: JN8AR07YXY
P0300: Multiple Misfire Detected. Since above repairs on several occassions CEL would come on and sometimes flash with rough run intermittently. Typically when came in was running well. Read and clear codes. Very difficult to get this vehicle away from customer long enough to diagnose anythi...
August 10, 2008
2003 Jeep Grand Cherokee Laredo 4.0L Misfire, MIL Lamp on VIN: 1J4GW48S03
P0300: Multiple Misfire Detected. this happens after 20 miles of driving and it picks up a miss on #1 and 5 cylinder (this time). The injector on those 2 cylinders had power but no trigger. I gave the intake a shot of carb cleaner and it did not smooth out. I thought maybe a spark issue but th...
August 12, 2008
1996 Land Rover Discovery SD 4.0L Misfire, MIL Lamp on VIN: SALJN1282T
P0300: Random Misfire. Hello, Hopefully someone can help. This Land Rover failed a Smog for the MIL. Misfire codes were stored. Vehicle was not misfiring during the smog and did pass the emissions portion. Upon start of diag. again the veh. was not misfiring. Swapped plugs 1&5 ...
August 12, 2008
2000 Honda Passport LX 3.2L Poor Idle Quality, Surge, Cuts out, Misfire VIN: 4S6DMM58W4
P0300: Random Misfire Detected. After replacing engine once vehicle reaches 190 dagrees idle fluxuates starts missing. sometimes will die. Have performed tsb check for this concern. Engine temp sensor when cold reading 165 dagrees and same for air intake temp. Have changed sensors and checke...
August 13, 2008
1998 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality, Misfire VIN: 1GCEK19R9W
P0300: Multiple Cylinder Misfire Detected. hey guys, this is actually on two vehicles I am pulling out my hair. a random misfire keeps appearing. truck sits until cold and startup is smooth. run it for 5 miles and get it hot. let sit for 1-2 hours and starts up with a misfire. the misfire monitor show...
August 14, 2008
1999 Chevrolet Silverado 1500 4.8L No Start, Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GCEC19V1X
P0300: Multiple Cylinder Misfire Detected. This truck is eating fuel pumps at a rate of 1 every oil change... Ive checked every wire in the circuit... we started with a aftermarket pump and it blew and warrantied thinking it was a defective unit...truck came back again and we installed a dealer pump......
August 14, 2008
2004 Mazda RX-8 1.3L No Start VIN: JM1FE17N64
P0300: Random Misfire Detected. Customer limped in. MIL light on and flashing. codes for random and cyl #[...]. Removed plugs, fouled badly.Found #1 & 2 coils bad.Replaced coils. Followed de choking procedure, added oil to intake at vac ports. Front rotor will not build more than 30 psi....
August 15, 2008
1996 Chevrolet S10 LS 4.3L Misfire, MIL Lamp on VIN: 1GCCS19X7T
P0300: Multiple Engine Misfire Detected. Rebuilt engine about 7,000 miles ago. Recplaced Cam, crank, pistions and block reworked, rings and bearings, heads professionally redone. Engine fired on first try (after proper oil priming). One problem was a cam/crank corelation error (dist. installed one to...
August 17, 2008
2002 Chrysler Voyager LX 3.3L Cuts out, Misfire VIN: 1C8GJ45332
P0300: Multiple Cylinder Misfire Detected. Customer came in with complaint of rough idle and missfire while driving Found serveral missfire codes, #3, #4, #6, and lean O2 bank 1 #4 spark plug black others normal Installed new spark plugs and wires, cleared codes Problem still present, missfire #3 and #...
August 18, 2008
1999 Honda Accord EX 2.3L Misfire, MIL Lamp on VIN: 1HGCG5651X
P0300: Multiple Misfire Detected. History...(would not fit above) Oct 2004 92,501 miles. Dealer replaced Cat Converter. Oct 2007 118,382 miles. Dealer replace Cat under warranty (po420) At this same time dealer replace timing belt and water pump. Dec 2007 119,909 miles. Same Dealer "Cust...
August 18, 2008
1999 Honda Accord EX 2.3L Misfire, MIL Lamp on VIN: 1HGCG5851X
P0300: Multiple Misfire Detected. History...(would not fit above) Oct 2004 92,501 miles. Dealer replaced Cat Converter. Oct 2007 118,382 miles. Dealer replace Cat under warranty (po420) At this same time dealer replace timing belt and water pump. Dec 2007 119,909 miles. Same Dealer "Cust...
August 18, 2008
1998 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality, Misfire VIN: 2GCEK19R3W
P0300: Multiple Cylinder Misfire Detected. Please help!!! This truck came in with the complaint of an intermittent misfire under heavey load. Problem showed up after the intake gaskets were replaced at another shop. Truck had code for random misfire (history misfires for #3 & #6) we were unable to ...
August 21, 2008
2003 Ford Ranger XL 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTYROU83P
P0300: random miss fire. truck idles rought will set miss fire codes and po301-po302-po303.cat back prsuer o psi at 2000 rpm both side.ireplaced #3 injetor.ltft bank 1 at idle is -28 short term at-3 at idle bank 2 is at +2 ltft stft 0 replaced intake gasket had leak dose to have egr v...
August 21, 2008
1996 Jaguar Vanden Plas 4.0L Poor Idle Quality, Misfire VIN: SAJKX6244T
P0300: Random missfire. Thanks for any help and for taking time to read this. I have a jaguar that idles rough and sets a PO300. The spark plugs were replaced two months ago for maintnance and are gapped to spec, fuel pressure is in spec, fuel injectors have been cleaned, two vacuum ...
August 21, 2008
2000 Hyundai Elantra GLS 2.0L MIL Lamp on, #4 missfire VIN: KMHJW35F24
P0300: Multiple Misfire Detected. same as above
August 23, 2008
1997 Dodge Dakota 3.9L Misfire, MIL Lamp on VIN: 1B7GG23X4V
P0300: Multiple Cylinder Misfire Detected. need your help, when started cold this vehicle will run fine raise idle and slight miss appears , try to drive away and the truck will jerk and missfire (as if someone is toggling a switch)for approx 1 - 2 kilometers and than goes away . runs fine all day .can...
August 26, 2008
2002 Dodge Intrepid SE 2.7L Poor Idle Quality, MIL Lamp on VIN: 2B3HD46RX2
P0300: Multiple Cylinder Misfire Detected. This fine automobile gets reccuring misfire and o2 short to power codes, one then the other about 3 days apart, we found a TSB for both codes stating that they could be erroronius codes and to reprogram the PCM with a new update, we sent it to the Local Dodge ...
August 26, 2008
2003 Mazda MPV EX 3.0L Stall, Misfire, MIL Lamp on, 3 injectors B1not wo VIN: JM3LW28J53
P0300: Multiple Misfire Detected. ... Customer bought Cat. and O2 sensor from dealer and replaced by himself. We check and found 3 injectors (#4,5,6) B2 are not working. Have power(pulse)to injectors.Compression check are OK. After replaced injectors we get #5 working. Thought injectors replac...
August 27, 2008