How do I diagnose an engine issue when I cannot get the engine to start ?? Cannot get codes with OBD reader - as the engine will not fire up. It wil crank, but no start up. Any ideas ??

Asked by Mar 15, 2017 at 04:04 PM about the 2007 Audi A4 2.0T Quattro

Question type: Maintenance & Repair

1 Answer

18,675

try spraying engine starter fluid in the intake to see if it fires at all, may be fuel pump. Have to test with voltmeter what is getting signals or what is not. Can you hear the fuel pump. after sitting long enough for the fuel pressure to drop when you turn the key to on you should hear the fuel pump for a few seconds prime itself if you do not hear it does not means its the pump but may be relay or ecm. So I would say have it checked out by a pro or buy a repair manual and follow the test & steps to diagnose it.

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