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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > N52 cranks no start need some help (ista codes included)



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      10-22-2018, 04:51 PM   #23
Uytre1234565
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Originally Posted by redblackbmw View Post
My car recently didnt start...

I the dme and Cas was out of synce...I had same error codes..

You need to synce the two...the car will not start until they are communicating.....

If you are not getting any power to your dme starter wire in green harness in engine bay....it may be a synce issue.
The engine cranks and fires spark now so I think cas-dme sync is okay.

Still not starting, rpm gets to about 300 but it doesn’t bang. I think the engine might have lost compression?? Anyway, I will do some more diagnosis tomorrow and update.
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      10-23-2018, 11:35 AM   #24
Uytre1234565
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The engine cranks and fires spark now so I think cas-dme sync is okay.

Still not starting, rpm gets to about 300 but it doesn’t bang. I think the engine might have lost compression?? Anyway, I will do some more diagnosis tomorrow and update.
Final update:

Finally got her started again. Turns out the cylinder walls were flooded with gas from all the cranking. I put a cap full of oil down each cylinder, cleaned the spark plugs with carb cleaner then she started right up.

Thanks for all the help everyone, I probably would have been stuck if not for all the help


For future reference, if you are trying to diagnose a bad fusable link with a multimeter, test for voltage with your key in the on position. This threw me off because with the key off, everything was getting power from the fuse.

Last edited by Uytre1234565; 10-23-2018 at 11:47 AM.
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