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BMW 3-Series (E90 E92) Forum
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No Spark NEED HELP !! N54 motor
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| 05-29-2017, 10:00 AM | #1 |
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New Member
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Rep 8
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No Spark NEED HELP !! N54 motor
No spark on my 335i
NEED HELP ! So recently I did a complete swap on my 335i n54 motor I put everything back , the motor cranks but it won't start I tested the spark plugs for spark and nothing happen I was told I have to program the ecu but don't know how true that is Any help would be appreciated What I did so / checked 1. Changed the battery 2. brand new spark plugs 3. Tested the DME fuses in ecu all working 4. tested all fuses in my fuse box all working 5. I'm getting gas   **  |
| 05-29-2017, 12:38 PM | #2 |
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Major
 185
Rep 1,017
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Did you make sure your crank sensor by the starter is plugged in? Also check your heavy ground strap at the starter, the motor will run as it did before off your ecu, but you will have to code the injectors if they came with the new motor. Put your original coils on, the others may be bad.
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| 05-30-2017, 01:19 AM | #3 |
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BimECU
193
Rep 759
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what codes?
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