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no signal to injector 1990 2.5 S10
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cheriekiss
Novice
Aug 9, 2006, 4:37 AM
Post #1 of 7
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no signal to injector 1990 2.5 S10
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1990 S10 2.5L tbi fuel injected, not starting....no pulse going to injector checked with a noid light....nothing...what could be the problems????
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way2old
Veteran
/ Moderator
Aug 9, 2006, 4:39 AM
Post #2 of 7
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Re: no signal to injector 1990 2.5 S10
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Check fuses under the dash first. I believe there are 2 fuses for the ECM. If one of these are blown it may not allow the injectors to pulse.
Being way2old is why I need help from younger minds
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cheriekiss
Novice
Aug 9, 2006, 4:43 AM
Post #3 of 7
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Re: no signal to injector 1990 2.5 S10
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have checked fuses they arent blown but ty
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way2old
Veteran
/ Moderator
Aug 9, 2006, 9:28 AM
Post #4 of 7
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Re: no signal to injector 1990 2.5 S10
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Have you looked at the injector wiring under the air filter housibg? These sometimes get pinched and injectors will not pulse.
Being way2old is why I need help from younger minds
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cheriekiss
Novice
Aug 11, 2006, 6:03 AM
Post #5 of 7
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Re: no signal to injector 1990 2.5 S10
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the wires arent pinched...just wondering if there was anything besides the trucks computer that could cause loss of injector pulse signal...being they are pretty expensive to replace and pretty much non returnable after u give them your old one for the core charge,,,into the cookie jar pretty well allready ..new fuel pump and filter and injector before we checked for pulse with a noid light...truck cranks over and runs with gas dumped in it...I dunno ...maybe ought to dump gas on it lol lol
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Guest
Anonymous Poster
64chevy@live.com
Aug 17, 2009, 1:33 AM
Post #6 of 7
(2652 views)
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Re: no signal to injector 1990 2.5 S10
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I have an 88 S10 with the same problem. Did you find anything? Did the computer fix it?
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Hammer Time
Ultimate Carjunky
/ Moderator
Aug 17, 2009, 1:43 AM
Post #7 of 7
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Re: no signal to injector 1990 2.5 S10
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This thread is 3 years old. If you need help you need to start a new question of your own.
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