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1989 question / help

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Old Oct 17, 2013 | 01:24 PM
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Default 1989 question / help

My car has developed a rough idle 7>15, and " chugging " especially when we first start out . Also , it pops / back fires . It has died during idle too.
IF it is easy fix I'm good but otherwise it goes back to a mechanic.
THX
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Old Oct 17, 2013 | 06:45 PM
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Fuel, air, and spark? hmm, ohm the injectors, and do a leak down down test (put fuel pressure gauge on rail, pressurize, and watch it leak down over 1 hour, more than 10 lb lose post up) on the fuel system.
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Old Oct 17, 2013 | 06:55 PM
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Also
http://www.corvettephotographs.com/c4vettes/codes.htm
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Old May 10, 2014 | 12:08 PM
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Default 89' Otcme

Originally Posted by 7Cav
My car has developed a rough idle 7>15, and " chugging " especially when we first start out . Also , it pops / back fires . It has died during idle too.
IF it is easy fix I'm good but otherwise it goes back to a mechanic.
THX
I told ya'll that I'd get back when the problem was solved. One
of the previous owners had set the car up as a street racer : ( holes
in the manifold ) for NO , 24# psi injectors ,cam and shaved heads and possibly
up graded pistons . She runs like a top but I can't drive her due a eye
eye operation the wk she was fixed. Oh, the injectors were replaced with 19# psi from a 302.
Once again TKS to all...see you on the road .
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