1986 e28 535i
Was running before parked
Symptom: no start, coughing, intake backfire
1. Have spark (new coil. Spark detected)
2. Have fuel (at least good relay, pumps and filter)
3. Have compression (even 134-140. Not huge but should be enough)
4. Have good ecu (tested and certified)
Could a collapsed muffler be causing this?
Sounds like a timing issue
Too much fuel?
FPR bad? CTS failed?
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