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"New" vats and ecm...worked now doesn't.

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Old 04-15-2012, 09:29 PM
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Car: 1985 camaro Z28
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"New" vats and ecm...worked now doesn't.

I've been without my camaro for 2 weeks now. All because my vats module died on me. Today I put an ecm and a vats module from a car in the junkyard in my camaro and it started right up and ran. I took the throttle body apart and it sprayed some gas so I sealed it up and let it set after that. I went back and it did nothing. We had the starter relay jumped when it ran fine, and now it just sparks each time and melts that jumper wire. It makes no sense. The starter should atleast work when it's jumped. It did for two weeks, now it won't. Any ideas?

Last edited by chevydrvr; 04-15-2012 at 09:39 PM.
Old 04-16-2012, 12:12 AM
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Re: "New" vats and ecm...worked now doesn't.

Originally Posted by chevydrvr
had the starter relay jumped and now it just sparks each time and melts that jumper wire. ?
Would indicate you have a dead short to ground somewhere on that wire to the starter solenoid
Put a DVM on it and see if goes to ground

Originally Posted by chevydrvr
. It makes no sense. The starter should at least work when it's jumped.
You are not jumping the starter ; only the wiring TO IT
Confirm problem is not within the starter itself by running a heavy wire from terminal ( purple ) on starter to the batt ,
touch on the POS terminal ( out of gear ) and see if engine cranks.
If starter works ;problem is with wiring from relay to starter,
if that jumper wire burns out also ;problem is with starter
EASY
Old 04-16-2012, 05:12 AM
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Re: "New" vats and ecm...worked now doesn't.

How do I use a volt meter to see if it went to ground?
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