Let's dig deeper into this CKP sensor signal problem on the 2004 Volvo XC90.
ECM-5200 DTC sets when cranking, and injector pulse is missing.

The CKP signal looks PERFECT on the scope, so WHAT IS THE PROBLEM??

After several frustrating hours of diagnostics, a fellow Volvo diagnostic technician pointed me to an obscure TSB...
You WON'T BELIEVE what the root cause of the problem actually is!

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