P0300 Diagnostic Trouble Code Discussion for October 2006
Multiple Misfire Detected
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P0300
| Help Request | Posted | |
| 2002 Chevrolet Express 2500 5.7L Cuts out, Misfire, MIL Lamp on VIN: 1GCGG25R12 P0300: Multiple Cylinder Misfire Detected. Hello GM tech's Truck was purchased with this problem runs poor under load misses and at times will backfire thru intake manifold, codes will come right back PO300 and PO335. I did test the CMP sensor and the new CKP sensor. we did replace cap rotor (delco par... |
October 02, 2006 | |
| 2003 GMC Sierra 1500 SLE 5.3L Poor Idle Quality, Misfire, MIL Lamp on, Low Power VIN: 2GTEK19T63 P0300: Multiple Cylinder Misfire Detected. ... low power & missfire. Checked for codes, Found Maf code & P0300. Cleared codes & only P0300 returns. Missfire counter shows 2,4,6,8 Missfiring. Feul press 55psi. Spark on all cylanders ok. Test injector signa... |
October 02, 2006 | |
| 1999 BMW 540i 4.4L MIL Lamp on VIN: WBADN5338X P0300: random multiple misfire. Thanks for you help in advance, Vehicle has 100k miles on it. The car came in originally for CEL, laundry list of items (belts, a/c noisy etc.) and service (inspection II). While doing service noticed oil had filled s/plug ports respective to the cylinders th... |
October 03, 2006 | |
| 2000 Nissan Pathfinder LE 3.3L Poor Idle Quality, Misfire VIN: JN8AR07S7Y P0300: Multiple Misfire Detected. got a weird one here... customer delivered vehicle to my shop yesterday, check engine light on and flashing at times (mostly at idle) complains of a slight loss of power and a rough idle. scanned codes found po300 random missfires. replaced plugs wires cap and... |
October 03, 2006 | |
| 2002 Chevrolet Express 3500 5.7L Misfire, MIL Lamp on VIN: 1GBHG31R62 P0300: Multiple Cylinder Misfire Detected. ... check engine flashing, i get this beast in with no lights on at all hook up solis to get codes and po1o1 and p0300 in system( can't get it to happen to me! dont want to give van back just yet, would like some info on this! all sensors are reading in range ... |
October 04, 2006 | |
| 1999 Nissan Pathfinder XE 3.3L MIL Lamp on VIN: JN8AR07Y3X P0300: Multiple Misfire Detected. we have this 1999 nissan pathfinder which was brought in from a used car dealer. this pathfinder came to our shop for a mil light we pulled the codes to find a po300 code (random misfire) no other codes are present. this vehicle has no skip and and runs like a... |
October 04, 2006 | |
| 1996 Geo Tracker 1.6L Excessive Emissions, No Start, Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2CNBE1360T P0300: Multiple Engine Misfire Detected. Thank you in advance for any help. This Geo has me stumped. Fuel pressure is higher than Mitchell specs, wich is 30-37 psi. I have 44psi regulated and 50 or higher unregulated. Vehicle will hardley run past 5 miles per hr. Vehicle is running rich. Replace fuel... |
October 05, 2006 | |
| 2000 GMC Jimmy Diamond Edition 4.3L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GKDT13WXY P0300: Multiple Cylinder Misfire Detected. Hello all,I am posting this truck again. I was closing the original and the cust. called.Same condition and codes.It took 2wks and 300mi to act up. I am including the original post& up date. Also, when acting up, B1S1 O2 is at 890mv on DVOM while scan data... |
October 05, 2006 | |
| 2000 Nissan Pathfinder LE 3.3L Poor Idle Quality, Misfire VIN: JN8AR07S7Y P0300: Multiple Misfire Detected. got a weird one here... customer delivered vehicle to my shop yesterday, check engine light on and flashing at times (mostly at idle) complains of a slight loss of power and a rough idle. scanned codes found po300 random missfires. replaced plugs wires cap and... |
October 05, 2006 | |
| 1996 Pontiac Firebird 3.8L Misfire, Poor Fuel Economy VIN: 10TU67O568 P0300: Multiple Engine Misfire Detected. she oringally ran out of gas filled ran a few days then engine light came ,brought to me change fuel filter .tryed to clear code comes right back on it still misfires not anough to stall but can feel it doesnt have the power it had before,injector pulse is 3.7... |
October 05, 2006 | |
| 2000 Chevrolet Impala 3.4L Cuts out, Misfire, MIL Lamp on VIN: 2G1WF52E6Y P0300: Multiple Cylinder Misfire Detected. this is a real hair puller. vehicle came in with complaint of no power and no overdrive. we found that the od was working ok, but at the rpm mentioned. it would start to misfire. it had several codes, but the only ones we could reproduce on a regular basis wer... |
October 06, 2006 | |
| 2002 Chrysler Town & Country Limited 3.8L Poor Idle Quality, Misfire VIN: 2C8GP64LX2 P0300: Multiple Cylinder Misfire Detected. customer brought van in after 2 days of running with mil on.he said van run ok;i pulled van in (no mil on) code po300 present and feels like misfire at idle.drb will show a few misfires on cyl. #3 and #4 all other data appears normal.ignition waveforms do not ... |
October 09, 2006 | |
| 2000 Saab 9-3 SE 2.0L Hesitation, Misfire, MIL Lamp on VIN: YS3DF78K0Y P0300: Multiple cylinder misfire. ... cold customer (used car dealer) changed ign. cassette, & sparkplugs -no change we smoked the intake 3 times hot & cold, checked on scope tried MAF & cran sensor from known good car. checked compression ok , checked fuel pressure, checked ... |
October 09, 2006 | |
| 2001 Volkswagen Passat GLS 1.8L Poor Idle Quality, Hesitation, MIL Lamp on VIN: WVWPD63B91 P0300: random misfire. this vehicle came to our shop from a used car lot. they sold it and the customer complained of a check engine light. so they replaced the 02 sensors and put a new maf sensor on it when that did not cure it it came to us. it will miss after it has set for 2 day... |
October 09, 2006 | |
| 1996 Pontiac Firebird 3.8L Misfire, Poor Fuel Economy VIN: 10TU67O568 P0300: Multiple Engine Misfire Detected. she oringally ran out of gas filled ran a few days then engine light came ,brought to me change fuel filter .tryed to clear code comes right back on it still misfires not anough to stall but can feel it doesnt have the power it had before,injector pulse is 3.7... |
October 10, 2006 | |
| 2001 Pontiac Grand Prix GTP 3.8L Misfire VIN: 1G2WR52161 P0300: Multiple Cylinder Misfire Detected. hey guys and gals this is my first posting so please bear with me.this car came to me with a defenet misfire on heavy accl. or load , runs fine at idle and normal accl. ltft-14.7 stft-1.6 maf readings appear normal misfire is random but more prevelent on 1 and... |
October 10, 2006 | |
| 1999 Chevrolet Silverado 1500 5.3L Misfire, MIL Lamp on VIN: 1GCEC14T3Y P0300: Multiple Cylinder Misfire Detected. ... trouble it came in with a mil and p0300. with the mileage and age we started with a set of delco plugs and wires.it still runs very rough at an idle with the most noticeable skip coming from cylinder # 4 we tried a new coil on that cylinder to no avail.co... |
October 12, 2006 | |
| 2002 Saturn SC1 1.9L Misfire VIN: 1G8ZN12832 P0300: Random Misfire Detected. this car came in with a miss about 2 mos. ago. our other shop did tune up was ok for about a week . came back with chec eng lite po301 then they sent it to me. i check for spark ok ichanged plugs put in what it called for (its not what they had in there i can'... |
October 12, 2006 | |
| 2002 Saturn SC1 1.9L Misfire VIN: 1G8ZN12832 P0300: Random Misfire Detected. this car came in with a miss about 2 mos. ago. our other shop did tune up was ok for about a week . came back with chec eng lite po301 then they sent it to me. i check for spark ok ichanged plugs put in what it called for (its not what they had in there i can'... |
October 13, 2006 | |
| 2000 Cadillac DeVille 4.6L Misfire, MIL Lamp on VIN: 1G6KD54Y8Y P0300: Engine Misfire Detected. This Deville originally came to me because there were a number of diplays not showing on the dash and the Service Engine light was on. All of the problems started after the owner installed a new battery. He said he replaced the battery because the positive pos... |
October 16, 2006 | |
| 2000 Chevrolet Impala 3.4L Cuts out, Misfire, MIL Lamp on VIN: 2G1WF52E6Y P0300: Multiple Cylinder Misfire Detected. this is a real hair puller. vehicle came in with complaint of no power and no overdrive. we found that the od was working ok, but at the rpm mentioned. it would start to misfire. it had several codes, but the only ones we could reproduce on a regular basis wer... |
October 16, 2006 | |
| 2000 Mitsubishi Montero Sport XLS 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: JA4MT31HOY P0300: Random Misfire Detected. thank you in advance for your time. vehicle came in for tune up, due to milage, installed factory plugs and wires, upper plenum gasket,and valve cover gaskets and tube seals. check engine light came on after 2 trips. random misfire- firing order in all data sh... |
October 16, 2006 | |
| 2001 Chevrolet Silverado 2500 6.0L Misfire, MIL Lamp on VIN: 1GCHK29U41 P0300: Multiple Cylinder Misfire Detected. ... Customer complained of check engine light coming on and flashing on the highway. code P0300 was set. The missfire history showed cyl #1 & 6 as missfiring. I cleared the code and road tested on local streets and no code was set. When scanning with the t... |
October 17, 2006 | |
| 2003 Chevrolet Silverado 2500 6.0L Misfire, MIL Lamp on VIN: 1GCGC24U13 P0300: Multiple Engine Misfire Detected. This thing is cursed. Its got a completely random misfire. sometimes there's none at all then the next start it will miss like crazy on any random cylinders. the computer seems to respond different everytime i perform a ckp variation relearn. it will barely ru... |
October 17, 2006 | |
| 2000 Volkswagen Jetta GLX 2.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWTE29M6Y P0300: random multiple misfire. Hey guys I this VW with a short in the comfort sys. control module plus misfire codes. I dont think the two are related.I believe to replace this module it will be have to be done by dealer so they can reprogram it. I dont have vin specific software for VW'S j... |
October 17, 2006 | |
| 1998 Dodge Dakota SLT 5.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1B7GL22Y7W P0300: Multiple Cylinder Misfire Detected. codes 301,308,300 keep returning, watching misfire counter for cyl1&cyl8 both register misfires and cyl 8 is 3times faster. misfire is more prominent in gear at idle and disappears when @ cruise. |
October 18, 2006 | |
| 1996 Chevrolet Astro 4.3L Poor Idle Quality, MIL Lamp on, low power VIN: 1GCDL19W6T P0300: Multiple Cylinder Misfire Detected. veh will start to missfire and count on cyl #1, 3, and 5 when you are driving and will ping bad if trying to accel. the pcm will start to remove fuel untill the misfire counts turn the check engine light on then it will run ok.if you are sitting at idle it wil... |
October 19, 2006 | |
| 1996 Chevrolet Lumina LS 3.1L Misfire VIN: 2G1WN52M8T P0300: Multiple Engine Misfire Detected. vehicle has returned to our shop 3 times in two months with # 2 cyl misfire , the problem is always the spark plug. something is making the plug misfire. the plug is always clean and looks normal,no oil or buildup of any kind. |
October 20, 2006 | |
| 2000 Cadillac DeVille 4.6L Misfire, MIL Lamp on VIN: 1G6KD54Y8Y P0300: Engine Misfire Detected. This Deville originally came to me because there were a number of diplays not showing on the dash and the Service Engine light was on. All of the problems started after the owner installed a new battery. He said he replaced the battery because the positive pos... |
October 21, 2006 | |
| 1999 Mercedes-Benz E320 4Matic 3.2L Stall, Misfire, MIL Lamp on VIN: WDBJF82H3X P0300: Random misfire. Vehicle starts & dies when cold. If it doesn't die right away, it will die when put into gear. Restarts & often stays running. Came in with MIL & above codes. After reviewing data & researching iATN, replaced MAF and reset adaptions. Symptoms t... |
October 26, 2006 | |
| 2003 Chevrolet Silverado 2500 6.0L Misfire, MIL Lamp on VIN: 1GCGC24U13 P0300: Multiple Engine Misfire Detected. This thing is cursed. Its got a completely random misfire. sometimes there's none at all then the next start it will miss like crazy on any random cylinders. the computer seems to respond different everytime i perform a ckp variation relearn. it will barely ru... |
October 27, 2006 | |
| 1999 Mercedes-Benz E320 4Matic 3.2L Stall, Misfire, MIL Lamp on VIN: WDBJF82H3X P0300: Random misfire. Vehicle starts & dies when cold. If it doesn't die right away, it will die when put into gear. Restarts & often stays running. Came in with MIL & above codes. After reviewing data & researching iATN, replaced MAF and reset adaptions. Symptoms t... |
October 27, 2006 | |
| 2001 Pontiac Bonneville SE 3.8L Misfire VIN: 1G2HX54K32 P0300: Multiple Engine Misfire Detected. Rough start at times when cold. Scan showed 2&5 counts misses. I Did fell a hard miss a few times when cold. Snap thorrtle 2&5 counts whould start for short period and clear up. Checked secondary spark and seem to have lean miss for 2&5, Short spar... |
October 29, 2006 | |
| 1999 Chevrolet Tahoe LS 5.7L Hesitation, Misfire, MIL Lamp on VIN: 1GNEK13R5X P0300: Multiple Cylinder Misfire Detected. Hello and thank you for reading. First of all I only post as a last resort, as it should be, meaning I have read every archive pertaining to my issues. This Tahoe only misfires going up a grade after a few miles at heavy throttle. it is very noticeable. someti... |
October 31, 2006 | |
| 2001 Pontiac Bonneville SE 3.8L Misfire VIN: 1G2HX54K32 P0300: Multiple Engine Misfire Detected. Rough start at times when cold. Scan showed 2&5 counts misses. I Did fell a hard miss a few times when cold. Snap thorrtle 2&5 counts whould start for short period and clear up. Checked secondary spark and seem to have lean miss for 2&5, Short spar... |
October 31, 2006 | |
| 2000 Toyota Tacoma Pre Runner 3.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4TASN92NXY P0300: Multiple Cylinder Misfire Detected. ... with a P0300, P0301 and a P0303. It has new spark plugs, o.e. double ground electrode. I had live missfire data on # 1 at the time approx 0-35% I swaped #1 coil with known good cyl and miss stayed with #1 and even some % o... |
October 31, 2006 |
