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P0300 Diagnostic Trouble Code Discussion for February 2015

Multiple Misfire Detected *

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Trouble Ticket Help Requests for DTC P0300

	Help Request	Posted
	2004 Isuzu Rodeo S 3.2L Poor Idle Quality, Surge, Stall VIN: 4S2DM58W04 P0300: Multiple Cylinder Misfire Detected. Well just thought I'd run this by you guys and see if I'm on the right track. Rodeo came in with low power light and ck engine light on. Cured code p1515 with new tps. Then right away before it warmed up set code po101 and if you let it run 5 min., it will set...	February 02, 2015
	1998 Ford Expedition Eddie Bauer 4.6L Poor Idle Quality, Misfire VIN: 1FMRU18W1W P0300: Random missfire detected in pending codes. This thing is driving us nuts, even after we replced engine it seemed a little rough at idle but we left it go, weren't sure. But its back and we have inspected and check everything we can think of and still at idle or brake torqing at 1500 rpm we feel an roug...	February 04, 2015
	2004 Isuzu Rodeo S 3.2L Poor Idle Quality, Surge, Stall VIN: 4S2DM58W04 P0300: Multiple Cylinder Misfire Detected. Well just thought I'd run this by you guys and see if I'm on the right track. Rodeo came in with low power light and ck engine light on. Cured code p1515 with new tps. Then right away before it warmed up set code po101 and if you let it run 5 min., it will set...	February 04, 2015
	1999 Nissan Frontier XE 2.4L Misfire VIN: 1N6DD26S7X P0300: Multiple Misfire Detected. This truck originally came in with a misfire complaint.Customer said misfires started after putting gas in. He assumed that he had gotten bad gas so he changed the fuel filter himself but it intermittently still misfired.When we got the truck it was nearly out...	February 04, 2015
	2005 Dodge Stratus SXT 2.7L Misfire VIN: 1B3EL46T15 P0300: Multiple Cylinder Misfire Detected. Vehicle came back after repair 40 miles later with check engine light on. vehicle runs fine when at high rpm.however when at idle cylinders 1 ,3 , 5. show high misfire counters between 50 and 100 and engine has noticeable miss. Also when engine rpms increase m...	February 05, 2015
	2010 Toyota Corolla XLE 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2T1BU4EE4A P0300: multiple cylinder misfire. ... I'm just stumped on. This woman filled it with diesel fuel back in december 2014. We cleaned out the tank, flushed lines, and performed an injector cleaning service and all was well (didnt replaced pump module just cleaned it due to over a grand from toyot...	February 06, 2015
	2002 Jaguar X-Type 2.5L Misfire, MIL Lamp on, Limp-home- mode VIN: SAJEB51DX2 To the group, when I first drove this vehicle the Limp-Home- Mode would engage at 3000 rpm to prevent Cat damage,Too many Misfire indications. Actually the vehicle drove and accelerated very well. I cleaned all the grounds in the front of the engine compartmen...	February 11, 2015
	2002 Chevrolet Astro 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCDM19X62 P0300: Multiple Cylinder Misfire Detected. Ok so this thing has a dead missfire on cylinder 4 at idle according to my scanner. You can watch the missfire counter for #4 run up like its not firing at all. I've replaced the #4 injector, swapped plugs and wires, checked compression( which is about 130 on ...	February 16, 2015
	2006 Ford F-150 XLT 5.4L Cuts out, Misfire VIN: 1FTPW14536 P0300: Random cylinder missfire. this 06 f-150 is in my shop with what seems to me like a lean misfire only on heavy load accell while cruising fuel pressure is ok reading pressure sensor replaced the fuel filter and MAF sensor. no change, whatched O2 sensors and fuel trims all look good, the...	February 16, 2015
	2006 Ford F-150 XLT 5.4L Cuts out, Misfire VIN: 1FTPW14536 P0300: Random cylinder missfire. this 06 f-150 is in my shop with what seems to me like a lean misfire only on heavy load accell while cruising fuel pressure is ok reading pressure sensor replaced the fuel filter and MAF sensor. no change, whatched O2 sensors and fuel trims all look good, the...	February 17, 2015
	2008 Pontiac Grand Prix 3.8L Misfire VIN: 2G2WP55228 P0300: multiple misfire. Vehicle was towed in for a no start problem. I replaced the ignition module and it ran great. The customer soon after complained of intermittent misfires when on the freeway going over 75mph. He said if he keeps it under 75, it runs great and never a miss or c...	February 18, 2015
	2012 Volkswagen Beetle Turbo 2.0L No Start, Misfire VIN: 3VWVA7AT5C P0300: random cylinder misfire. ... inspection. p0301 p0303 codes were present. Switched #1 coil to #2 cylinder and still no spark from coil. Then again switched it to #3. Which originally had spark. Now vehicle doesn't start or have spark from any coil. Ignition primary signal to each coil ...	February 20, 2015
	2002 Jaguar X-Type 2.5L Misfire, MIL Lamp on, Limp-home- mode VIN: SAJEB51DX2 To the group, when I first drove this vehicle the Limp-Home- Mode would engage at 3000 rpm to prevent Cat damage,Too many Misfire indications. Actually the vehicle drove and accelerated very well. I cleaned all the grounds in the front of the engine compartmen...	February 21, 2015
	2008 Jeep Compass Sport 2.4L MIL Lamp on VIN: 1J8FT47W98 P0300: Multiple cyl misfire. ... need your help please! This Compass came in with a complaint that CEL on and flashing. scan test read PCM code P0300 active. But road tested and ran fine no sign of misfire. We took a look at the plugs found them to be completely worn, customer said plugs ...	February 25, 2015
	2001 Jeep Cherokee Sport 4.0L Poor Idle Quality, MIL Lamp on, Low vacuume VIN: 1J4FT48S01 P0300: Multiple Cylinder Misfire Detected. Vehicle has low engine vacuum at idle 14in at 1500 rpm vacuum is good at 20in. I have removed front cover to check cam timing looks ok. Checked compression ok. Checked cam and crank sensor correlation physical and with lab scope ok. I believe that I could ha...	February 28, 2015