Help with OTC Readings
rrobbins_66
05-25-2004, 03:13 PM
I have hooked up an OTC 4000 to my 93 Pontiac Grand Am and have gotten some peculiar messages.
I wanted to test the ECM due to a problem with the Ignition. There seems to be no fire to the plugs and I decided to get any trouble codes from the computer.
When I hooked up the OTC scanner, I only got postitive data back. No Error codes, ECM tested ok and everything else seemed fine except that the engine would not start.
I did finally get a response of TPS Out of range. Now I am totally confused on why a faulty TPS would cause the engine not to fire.
Can anyone help shed some light at the end of this tunnel, or maybe provide a fresh perspective.
thanks.
I wanted to test the ECM due to a problem with the Ignition. There seems to be no fire to the plugs and I decided to get any trouble codes from the computer.
When I hooked up the OTC scanner, I only got postitive data back. No Error codes, ECM tested ok and everything else seemed fine except that the engine would not start.
I did finally get a response of TPS Out of range. Now I am totally confused on why a faulty TPS would cause the engine not to fire.
Can anyone help shed some light at the end of this tunnel, or maybe provide a fresh perspective.
thanks.
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