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E30 M3 (1986-1990)

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  #1  
Old 12-04-2018, 02:45 PM
CourtM3 CourtM3 is offline
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Mein Auto:
Misfire under load

-The car starts up is without any problems, but under load has a misfire and once warmed is more pronounced.


Checked a few things today to see if there's anything I could do to fix it:

Removed and checked the plenum to check for leaks (none found)
Checked plugs and wires for correct resistance measurements (all checked ok)

It was getting late so wrapped it up and tomorrow going to check TPS and CPS.

Any other recommendations?
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  #2  
Old 12-04-2018, 02:57 PM
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Doug Huffman Doug Huffman is offline
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Mein Auto: CPO2012 X5 35d M57(E70)
How old are the plugs? Check / replace the plugs.
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Old 12-05-2018, 07:23 AM
CourtM3 CourtM3 is offline
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Mein Auto:
Plugs are only about a year old, but car has been in storage, will check replace them today and see if that makes a difference.
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