Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

08 Saturn aura 4cyl No crank no start

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4 years 8 months ago #32743 by barry.hyrne
08 Saturn aura 4cyl No crank no start was created by barry.hyrne
08 Saturn aura 4cyl started with no start no crank . Jump crank relay and cranks. Replaced ignition switch. No help . 5volt ref good. Replaced ecm and went threw 10min 3 times with key. Cranks now no start , no noid. , spray either in throttle body engine starts???

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4 years 8 months ago #32755 by Cheryl
Replied by Cheryl on topic 08 Saturn aura 4cyl No crank no start
Any codes in any modules??

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4 years 8 months ago #32756 by Cheryl
Replied by Cheryl on topic 08 Saturn aura 4cyl No crank no start
Just asking you have power to the injectors??

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4 years 8 months ago #32767 by barry.hyrne
Replied by barry.hyrne on topic 08 Saturn aura 4cyl No crank no start
Power to injectors no noid

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4 years 8 months ago #32768 by barry.hyrne
Replied by barry.hyrne on topic 08 Saturn aura 4cyl No crank no start
Code port wont read shows err

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4 years 8 months ago #32780 by Cheryl
Replied by Cheryl on topic 08 Saturn aura 4cyl No crank no start
I’d be checking powers and grounds at the pcm if you can’t communicate with it.

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4 years 8 months ago #32819 by barry.hyrne
Replied by barry.hyrne on topic 08 Saturn aura 4cyl No crank no start
Thanks I need to find wiring diagram for that check at pcm. I checked injector harness no positive current and ground side hardly lights very dim. ??

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4 years 8 months ago #32820 by barry.hyrne
Replied by barry.hyrne on topic 08 Saturn aura 4cyl No crank no start
Also the scanner says crank sensor relearn

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4 years 8 months ago #32825 by barry.hyrne
Replied by barry.hyrne on topic 08 Saturn aura 4cyl No crank no start
engine cranks and runs on starting fluid , no injector pulse , no 12volts to injector harness , ground side is very dim . replaced ignition swich and pcm, engine code crank sensor needs relearn. ?????????

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4 years 8 months ago #32830 by Cheryl
Replied by Cheryl on topic 08 Saturn aura 4cyl No crank no start
That’s what I asked earlier do you have 12 volts to one of the injector wires during key on or engine cranking. Have you checked the fuses yet?? Also the engine has a schrader valve have you checked fuel pressure???

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4 years 8 months ago #32831 by Cheryl
Replied by Cheryl on topic 08 Saturn aura 4cyl No crank no start
Also how are you checking the ground side?

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4 years 8 months ago #32845 by Chad
Replied by Chad on topic 08 Saturn aura 4cyl No crank no start

barry.hyrne wrote: I need to find wiring diagram for that check at pcm.












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