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Car Won't start! Possible AEM issue?

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Old 06-15-2021, 12:10 PM
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Should be easy to check the sensor readings in the AEM software and spot a bad MAP sensor.
IAT, ECT and TPS could also cause problems.
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Old 06-15-2021, 07:15 PM
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Key on engine off. Things should read:

Map sensor 0 psiFuel pressure=base pressThrottle=0%
coolant/air temps =outside temp
If you have key on and reading 5psi or -5psi map pressure you know sensor is bad or wiring backwards! I accidentally switched throttle and map connectors once...
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Old 06-16-2021, 07:27 AM
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Originally Posted by flanders
Should be easy to check the sensor readings in the AEM software and spot a bad MAP sensor.
IAT, ECT and TPS could also cause problems.
Good point. It reported timing errors for a while since I was tuned. How could timing be bad/off?
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Old 06-16-2021, 07:28 AM
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Originally Posted by F1TwoThousand
Key on engine off. Things should read:

Map sensor 0 psiFuel pressure=base pressThrottle=0%
coolant/air temps =outside temp
If you have key on and reading 5psi or -5psi map pressure you know sensor is bad or wiring backwards! I accidentally switched throttle and map connectors once...
I'll take a look asap. I doubt I've ever swapped those connections but stranger things have happened lol
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