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1995 Volvo 940, Non-Turbo, Wagon, Bosch System 900

posted by  Amarin on  Sun Jul 3 04:46 CST 2022
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last visit: Thu Oct 23 22:42 CST 2014
[RELATED]

Dear Habib,

Try to get codes from your OBD box located in engine compartment near the strut tower driver's side.

Your symptoms looks like crank sensor intermittent failure. Thats why you don't get spark sometimes. When car's computer can't sense the engine turning no signal send to ignition module to activate ignition coil.

Yes I see that you have replaced the crank sensor but failure of new part still happens. What to do? Just get another one. Preferably Bougicord brand or Volvo original. Its price may have increased nowadays but thats something unavoidable. For mission critical item (thanks Spook!) its best to get any of these two.

Can't see why you're worried about the ignition coil. Is it because thats the item you haven't replaced? Bosch coils for 900 series is very robust that even some are being sold as used item still works well no problem. I have new Bosch coil with 10k ohms secondary winding (made in Brazil) and old used from eBay with 8.5k ohms secondary (made in Germany). Both works flawlessly.


Amarin






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