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S90 delayed Check Engine Light? 900

posted by  jlvolvo on  Mon Aug 20 10:03 CST 2018
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Oh okay, I see what you're saying.

Haven't scanned for code today, I really ought to buy my own OBDII reader...

I found this thread about a 960 displaying similar behavior but no one ever reported back if it was fixed: https://volvoforums.com/forum/volvo-260-760-960-28/96-960-check-engine-light-no-codes-88487/

One commenter suggests it is a short in the system ( I am skeptical of this ).

Another says it is simply a faulty PNP ( More believable, as this blank CEL seems to coincide with PNP breaking ).

I didn't think this CEL could be the PNP as they usually display a very identifiable error sequence with multiple flashing lights (as we all know), but I suppose my only option is to replace the PNP and see if that resolves the issue!


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-- 1998 S90 222k -- | -- 1998 S90 83k--






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New S90 delayed Check Engine Light? [900]
posted by  jlvolvo  on Fri Aug 17 11:18 CST 2018 >


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