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Old 04-02-2004, 06:36 PM
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GMMerlin GMMerlin is offline
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Re: 94 pont. transport

Quote:
Originally Posted by toivo
3.1 litre will not start, i am going to change spark plugs and change oil. fuel pump works, it has spark. will fire up poorly for a few seconds if i put gas down the tbi. no check engine light even when the key is first turned on. does not respond to scan. injectors do not seem to be working. how do you determine if it is qdr's. or is there a relay to the pcm? thanks, toivo
First thing before you replace any parts is to do a little diagnosis first.

Check the fuses for the ecm and the fusible links at the starter..with no CEL most likely you have a power problem to the ECM...There is usually 2 battery power feeds and 1 switched ignition feed to the ECM
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