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Bmw e46 318ci 2000 no spark on cylinder 2/3

Hi got a bmw e46 318ci 2000 it cut out on the motorway and only fires on two cylinders 1/4 i have changed the crankshaft and camshaft sensor and ecu coil pack leads wireing loom and plugs all have been changed maf sensor is fine fuel pump working compression is perfect timings been checked turns over on 1/4 runs poorly gases just getting a backfire into the engine faults only read misfire on 2/3 any ideas.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

maklean
  • 1665 Answers

SOURCE: Misfire on cylinder 1 and 3

Do you observe abnormal idle speed? It may be just an indicator fault; not a really engine firing problem.
Sign up free at link http://ww.hmaservice.com/
You will find a lot of technical information for your model.

Posted on May 20, 2008

  • 148 Answers

SOURCE: engine stalls

your on the right route but also check egr valve

Posted on Jul 07, 2008

chuck943
  • 783 Answers

SOURCE: engine code p0307 cylinder #7 misfire

It could be carbon deposits on valve seats keeping valves from totally closing. You can try getting you a can of motorcraft PM3 top end engine cleaner and get engine up to operating temp then remove one of the small vacuum lines from the intake and draw the contents of the can slowly into the engine.After you have drawn in the contents shut engine off and let it soak for about 45 minutes then crank it back up and let it run until it clears. Now it will smoke like a forrest fire while you are doing this so don't be alarmed,just tell the neighbors you are spraying for mosqitos.This may cure the problem. If not you may be looking at a valve job.
This can be verified with a compression test if this is what is causing it.

Posted on Feb 05, 2009

  • 5 Answers

SOURCE: BMW 318 si 2002 engine cuts out

solution 1 -fuel related
change fuel filter & add techron gas additive to tank.
solution 2 - exhaust back pressure too high (cat. convertor stopped up.

Posted on Feb 27, 2009

  • 1129 Answers

SOURCE: crankshaft sensor

go on ebay and purchase a repair manual disk it will have an electrical locator schematic on it

Posted on Jul 01, 2009

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aa812aa.jpg

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