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missfire

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 5 Series
Forum Discription: This forum will deal with any issues on the BMW 5 Series (E12, E28, E34, E39, E60 & E61)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=48025
Printed Date: 18-May-2024 at 18:41


Topic: missfire
Posted By: hanz
Subject: missfire
Date Posted: 23-June-2011 at 22:41
hi guys thanks for all your advise on my e39, turned out to be a broken thermostate for my overheating not head gasket! but still cant sort out my missfire and no power hardly at all.would it be poss that my air flow sensor is nackered?or may be another sensor that could cause this problem.


Replies:
Posted By: Andrew Rolland
Date Posted: 24-June-2011 at 08:08

You are quite correct, it could be any other sensor. 

You need to take it to a garage that can read the diagnostics.

It could be crank/cam/temp/O2/MAF sensor at fault or blocked EGR system, split inlet hoses, faulty spark plug or ignition coil. Trying to pin point any of those are a nightmare without a diagnostic check.  A diagnostic check is usually a standard fee of 1 hours labour.

Depending on the age of the car it could be that the catalytic converters are breaking up and impeding the flow of the exhaust gasses.

Is it an automatic per chance?

Andrew



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Posted By: hanz
Date Posted: 25-June-2011 at 21:14
yes it is an auto and can you tell me if it has a egr?as im not sure thanks for your help.1997 528i auto


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