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injection system

Old Mar 13, 2015 | 03:51 AM
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petrosky's Avatar
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injection system

I have no injector pulse on one side only any ideas?I have power but no pulse changed ecm under distributor cap no change its a 89 firebird with 5.0

Last edited by petrosky; Mar 13, 2015 at 03:57 AM.
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Old Mar 13, 2015 | 02:40 PM
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From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: injection system

The ign module under the distributor cap would effect both sides of the injectors. There are two injector fuses. Better start checking wires. You didn't say if it's tbi or tpi but here are your diagrams. http://austinthirdgen.org/mkportal/m...ine_wiring.gif http://austinthirdgen.org/mkportal/m...ine_wiring.gif
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Old Mar 15, 2015 | 05:00 PM
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Car: 1990 Firebird Formula
Engine: 5.0 TPI
Re: injection system

Originally Posted by petrosky
I have no injector pulse on one side only any ideas?I have power but no pulse changed ecm under distributor cap no change its a 89 firebird with 5.0
Hi, I think I may have this same issue, what is the effect of this on the engine? Does it run rough? Have you noticed if one side is running cold?

Here is mine

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