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I got a 02 BMW 745i 4-4 engine with codes po363 misfire detected fueling disable, p1343 misfire cylinder one with fuel cut off and po302 misfire cylinder two. I put in new plugs new coils

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6ya6ya
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Posted on Jan 02, 2017

dustyboner
  • 331 Answers

SOURCE: 2000 Pontiac Grand AM trouble code P0300

Im surprised that didn't fix it. On the Quad4 engine its usually a cracked coil housing.
Have you checked:

  • fuel injectors / fuel pressure
  • coolant temp sensor
  • compression - to check for bad head gasket
  • ignition control module
  • EGR system - make sure the valve isn't stuck
  • crank position sensor.
The crankshaft position system variation compensating values are stored in the PCM non-volatile memory after a learn procedure has been performed. If the actual crankshaft position system variation is not within the crankshaft position system variation compensating values stored in the PCM, DTC P0300 may set.

Posted on Oct 15, 2008

  • 1 Answer

SOURCE: 99 4runner 5vz-fe 3.4 misfire

I know this post is old, but right on the engine theres a sticker that says use multi-ground plugs only. I read a similar problem like yours and it seemed to turn out that the spark was arcing to ground over the ceramic on the plug. So maybe it could have something to do with the single ground plugs.

Posted on Jan 23, 2009

dennymulford
  • 1055 Answers

SOURCE: 1999 Ford E250 van Rough running

complete tune up plugs wires distributoe cap and rotor

Posted on Jan 24, 2009

  • 1 Answer

SOURCE: Need help with Audi A4 2000 1.8t Misfiring and Fuel/Air Problems?

replace the speed idle sensor

Posted on Feb 28, 2009

roniecon
  • 6826 Answers

SOURCE: 2003 kia # 3 misfire/ runs rough

Replace the coil for number 3 cylinder.

Posted on Nov 11, 2009

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1 Answer

02 bmw745I I replace the spark plugs twice and coils twice. I still cant get rid of the code p1343 misfire at cylinder 1 with fuel cut-off. I ALSO REPLACE THE FUEL INJECTORS HELP ME.


If the coils and plugs are good, it leaves injectors or the electronics that drives the injector on number 1.
Assuming there is good compression etc.

Jun 29, 2017 | Cars & Trucks

1 Answer

Po302, 1999 Jeep Cherokee #2 cylinder misfire


Try checking fuel injector.
Try checking compression.
Is the engine running ok, maybe you're getting a bad code, if so you need to find out how to clear it, sorry I can't help you with that. Good luck

Sep 24, 2015 | 1999 Jeep Cherokee

1 Answer

2003 acura tl error codes po301 po302 po304 po306 p1399 po300


PO300 and P1399 are random cylinder misfire detected.
PO301 cylinder 1 misfire
PO302 cylinder 2 misfire
PO304 cylinder 4 misfire
PO306 cylinder 6 misfire
I would say that you have damage to the ignition wiring harness or you ECM is failing.

Feb 17, 2015 | Acura Cars & Trucks

1 Answer

Code PO302


Error Code: P0302
Description:
Cylinder 2 - Misfire Detected
Possible Cause:
Wiring.
Ignition system.
Fuel injectors.
Fuel pressure.
Running out of fuel.
EVAP canister purge valve.
Evaporative emission system.
Low compression.
Base engine problems.
Engine control module (ECM).

Mar 08, 2014 | 2006 Saturn ION

1 Answer

Do not know how to check injectors on my 1990 lumina 3.1l


For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- No pulse to injectors? http://technoanswers.blogspot.com/2012/01/no-pulse-to-injectors.html
---------How to Test and Replace Fuel Injectors? http://repairhelpcenter.blogspot.com/2011/11/how-to-test-and-replace-fuel-injectors.html
---------

How to Replace a Fuel Injector
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-injector.html
--------
Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

-----------
Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

-----------
While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

------------
Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

--------------
Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

-----------
Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

----------

This will help.

Thanks.

Feb 12, 2012 | 1990 Chevrolet Lumina

1 Answer

My engine runs rough and the codes say p1341 and p1351


Here you go - this'll help you translate your engine codes. Looks like your getting a "Multiple Cylinder Misfire With Fuel Cut-off" and "Misfire Cylinder 5 With Fuel Cut-off". Hopefully you just need a good tune up, but this should point you in the right direction. Good Luck.

http://www.obd-codes.com/trouble_codes/bmw/

Jul 03, 2011 | BMW 545 Cars & Trucks

1 Answer

Rough Idling with severl codes


SOUND STOP UP FUEL FILTER.WHEN FUEL TANK GET LOW WHEN YOU PUT IN MORE GAS THE SEDIMENT IN BOTTOM OF FUEL TANK GET DISTURB GOES TO FUEL FILTER CLOG IT UP CAUSING LEAN CYLINDERS MISFIRE.

Jul 06, 2010 | 2001 BMW 330

1 Answer

I have a 2001 mercury sable and i was given a code of PO302 can you tell me what this might mean.


The code P0302 means that the computer has detected a misfire on cylinder #2
Possible causes are
1. A mechanical problem with the engine
2. wiring,
3. ignition or fuel system
4. Injector
5. ECT (Engine coolant sensor or MAF (Mass airflow sensor)
6. ECM (Engine Control Module)

Sep 15, 2009 | 2001 Mercury Sable

1 Answer

I have a 318i 1998, the engine light came on. i hook up my obd scaner to it and the trouble codes are as follows p1174 (fuel trim adaptation additive bank 1 malfunction,po300 (random/multiple cyl. misfire...


Sounds like it may be running a bit lean - do basic checks for air leaks in the induction system (such as leaking manifold gasket, loose hose fittings to air flow sensor etc).
Condition of HT leads also worth a check.

Jun 07, 2009 | 1999 BMW 318 ti

2 Answers

HELP, MISFIRING: 1999 Audi A6 Quattro Avant Wagon


P1127 Long Term Fuel Trim mult.,Bank1 System too Rich

P1129 Long Term Fuel Trim mult.,Bank2 System too Rich

P1250 Fuel Level Too Low

P1300 Misfire detected Reason: Fuel level too low

P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)

P0300 Random/Multiple Cylinder Misfire Detected

P0303 Cylinder 3 Misfire Detected

P0304 Cylinder 4 Misfire Detected

It sounds like there is a lot going on.

Good Luck

Brian

Sep 14, 2008 | 1999 Audi A6

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