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Old October 13th 15, 12:41 PM posted to alt.autos.corvette
unclevito
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Posts: 14
Default PING: DAD! question about c4 ecm problem

On 9/16/2015 5:11 AM, wrote:
> I have a 1990 C4. base engine, 6 speed. All of a suddent it would
> start locking out my ignition as if it where reading my key chip as
> invalid. 5 minutes later it would reset and I could get it started
> agin. Suspected key switch but it always read good. Then it just shut
> down. No fuel pump, no turn over, nothing. Exaclty as anti theft would
> do but never reset. No codes from the ccm or ecm. Finally I changed
> out the ecm and bingo it started and ran fine. I did see to dark pins
> on one of the connectors. I cleaned them and hooked everything up and
> all was well, for about 2 weeks. This is not a dailey driver, but
> after approximatly 10 starts and stops it did it again. I had it towed
> home and again no codes and everything appeared fine. I replaced the
> ecm again and bang it started right back up. I am almost afraid to
> drive it now as I dont want to get starnded somewhere. I will probably
> buy a back up ecm so if it does ahppen again I can get home. I was
> just wondering if you might have an additional idea as to what to look
> for/check that may be a cause for this proble. I do have 107000 miles
> on it. I appreciate any help you can gie me.
> Thanks
> Ron
>



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Vito
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