C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

How much do leaky injectors hurt performance?

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Old Aug 4, 2002 | 02:33 PM
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kbklt1's Avatar
kbklt1
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From: Mobile al
Default How much do leaky injectors hurt performance?

Kind of says it all in the title, I have a 92 so it's batch fire, when I start it after sitting for a bit and warmed up it blows black smoke for a sec.
The car seems to be very suggish through the whole power band, and I was hoping that it's due to the injectors leaking.

Thanks Guys
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Old Aug 4, 2002 | 02:44 PM
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severe-1
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From: Palm City FL
Default Re: How much do leaky injectors hurt performance? (kbklt1)

Leaky injectors should only affect idle. Broken injectors affect power curve. Sounds like you have other problems too. Any codes?
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Old Aug 4, 2002 | 03:02 PM
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kbklt1
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From: Mobile al
Default Re: How much do leaky injectors hurt performance? (severe-1)

nope no codes, it does have about 130,000 miles but no smoke or anything except on start up warm, sounds like it's time to try some compression tests and a leakdown test, it's got new pulgs and wires and a new cap and rotor in the opti.
I do know that it's pulling spark out between 4600 and 5500 something like 8-10 degrees. but I dont have diacom up and running yet.
But I think your right, there are some more problems to go with the injectors leaking

Thanks severe-1

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