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1989 C4 Fuel injectors

Forum: C4 HVAC, Fuel, Emissions, and Exhaust

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1989 C4 Fuel injectors

Posted: 11/9/12 5:48amMessage 1 of 12
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Vette(s): 1989 Corvette Coupe
Hi everyone! I am having to replace the injectors in my 1989 C4, and am asking if anyone could recommend a good set of replacements for this 'Vette. I just want to go back with a stock replacement so I don't have to do any mods to the ECM. Any tips or suggestions?


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Re: 1989 C4 Fuel injectors

Posted: 11/9/12 10:04amMessage 2 of 12
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West Chester, PA - USA
Joined: 3/20/2009
Posts: 705
Vette(s): 1995 Torch Red Coupe
Contact Jon at Fuel Injector Connection, he'll hook you up.
 
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Re: 1989 C4 Fuel injectors

Posted: 11/9/12 1:44pmMessage 3 of 12
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Vette(s): 1989 Corvette Coupe
Thanks jimmymack


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Re: 1989 C4 Fuel injectors

Posted: 11/9/12 2:04pmMessage 4 of 12
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Duncanville, TX - USA
Joined: 11/8/2003
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I bought a set of Acell infectors for my '85 when I replaced them. So far, no problems.

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Re: 1989 C4 Fuel injectors

Posted: 11/9/12 5:12pmMessage 5 of 12
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Rochester, NY - USA
Joined: 8/20/2011
Posts: 60
Vette(s): 1987 Coupe Red and red, Z52
I installed a set from FIC too this spring. Just stock rate at 22lb Bosch III. Working great!
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Re: 1989 C4 Fuel injectors

Posted: 11/21/12 1:20pmMessage 6 of 12
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I also bought a set of Bosch flow matched injectors from Jon at FIC. Dealer wanted $1600 for 8 while Jon provided rebuilt injectors at a much more reasonable cost. 
They solved my problems, and the car is running strong, and I think better than before the replacement injectors.  Maybe it is just a good idaea to replace them every 20 years or so?
Jon will provide exactly what you need, trust him, I did and am happy!
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Re: 1989 C4 Fuel injectors

Posted: 11/24/12 2:11pmMessage 7 of 12
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Vette(s): 1989 Corvette Coupe
Thanks for all the tips, guys. I got hooked up on a set of Bosch III injectors from FIC, and got them installed, and now my car starts, but only runs for about 3 or 4 seconds, then stops. I guess I have another problem. Does anyone else have any experience with this one? All help is appreciated.


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Re: 1989 C4 Fuel injectors

Posted: 11/25/12 5:41amMessage 8 of 12
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Caledonia, Canada
Joined: 11/3/2011
Posts: 150
Vette(s): 1988 Convertable
 Is there any codes showing ?  This is where you need to start to trouble shoot.
 
 This sounds like it might be the ignition control module. ICM. ....... maybe.
 

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Re: 1989 C4 Fuel injectors

Posted: 12/16/12 7:18pmMessage 9 of 12
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Just an update for anyone who might still be following this post. I replaced the injectors, changed the oil and filter, replaced the spark plugs, cleared the ECM, and got the car to start with a great deal of difficulty. After I drove it fir a short distance, it lost power and stalled. When I tried to start it, it backfired through the intake, and caught the air filter on fire, and wouldn't start any more after that. After I had it hauled back home, I checked the cam and distributor timing and all seems to be well there. Now I really don't know where to go next. I have a mechanic who is going to come out and try to diagnose it as soon as the weather here permits. Thanks guys.


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Re: 1989 C4 Fuel injectors

Posted: 12/16/12 8:06pmMessage 10 of 12
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Vette(s): 1989 Corvette Coupe
Oh yeah, also ICM tested good.


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