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need help

   
Old 11-16-2014, 01:08 PM
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need help
i just put my tpi back on my 85 camaro its been off for years so i put a new aem fuel pump and some used lt1 injectors on it and it will not start cranks good and will hit on starting fluid any input would be appreciated
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Old 11-16-2014, 03:30 PM
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Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Re: need help
I'd responded to a similar issue yesterday:

https://www.thirdgen.org/forums/tpi/...ue-cranks.html
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Old 11-16-2014, 04:09 PM
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Re: need help
i deleted the cold start but didnt reflash the computer for it do you think that could be it has plenty of fuel pressure
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Old 11-16-2014, 05:39 PM
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Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Re: need help
If you have verified fuel pressure and we know you have spark (via starting fluid), then the injectors are not firing (or getting signal to fire)...or if they are, then they are plugged up.
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Old 11-17-2014, 08:48 PM
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Re: need help
i went and got a noid tester today will check the injectors tomorrow
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Old 11-17-2014, 09:11 PM
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Re: need help
Remember, the noid light will tell you if the ECM is trying to fire the injectors...one side should flash when the engine is spinning over.

Let us know.
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Old 11-18-2014, 04:20 PM
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Re: need help
it has 50 psi when cranking and the noid light is flashing real good tried 3 different injectors and the noid light flashed on all of them
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Old 11-18-2014, 09:16 PM
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Re: need help
My best guess, is the used injectors are clogged, plugged up...if you have fuel pressure at the rail, and the signal to fire the injector is there...what else could it be? (asking, surmising)
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Old 11-19-2014, 07:54 PM
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Re: need help
i will put another set in it and let you know
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Old 11-20-2014, 06:55 AM
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Re: need help
Originally Posted by 8Mike9
My best guess, is the used injectors are clogged, plugged up...if you have fuel pressure at the rail, and the signal to fire the injector is there...what else could it be? (asking, surmising)
sometimes you can luck out with used injectors functioning properly, however it depends on how long they were sitting and what condition they are in.
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Old 12-07-2014, 07:47 PM
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Re: need help
well just got to working on the car again changed out the injectors and still no luck tries to hit but still no start and the engine light stays on
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Old 12-09-2014, 01:43 PM
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Re: need help
Were these new injectors this time?
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Old 12-09-2014, 07:23 PM
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Re: need help
Nope another used set
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Old 12-09-2014, 10:26 PM
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Re: need help
Originally Posted by kyblackss
Nope another used set
Feeling a common denominator here..
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