90 iroc z

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02-13-2012 | 08:01 AM

bigcountry1979

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Joined: Feb 2012

Posts: 51

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Car: 90 iroc z

Engine: 350

Transmission: 4 speed with od

Axle/Gears: 323 ratio

90 iroc z

Have a 90 iroc z that valves knocks and pings when I accerlrate"even when I run 93 octane.engine lite comes on after a couple miles.any help would be apperciated!

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02-13-2012 | 08:37 PM

jtsk

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Posts: 614

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From: Memphis, TN

Car: 1992 z28 Purple Haze

Engine: 5.7L Tuned Port Injection

Transmission: 700R4

Axle/Gears: 3.23 both spinning

Re: 90 iroc z

Have you pulled the codes? Offhand it sounds like a timing issue.

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02-13-2012 | 08:41 PM

bigcountry1979

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Junior Member

Joined: Feb 2012

Posts: 51

Likes: 0

Car: 90 iroc z

Engine: 350

Transmission: 4 speed with od

Axle/Gears: 323 ratio

Re: 90 iroc z

Nah not yet I was today at buddys"he"s got the reader and the light ddnt come on til I had left"but gonna try to ride around b4 heading to his shop"any ideas why it be running great and then all the sudden the lite comes on??

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