Help!!!
Thread Starter
Staging Lane
Joined: Apr 2006
Posts: 62
Likes: 0
From: owasso
Help!!! i have a 93 z28 and just changed the opti spark and new plugs the car idles fine but when u drive it and try to give it gas it backfires and wants to die.just changed the coil also. run out of ideas
Teching In
Joined: Feb 2006
Posts: 33
Likes: 0
From: Tallahassee, Fl
timing would be my guess. a car out of time can sometimes still idle ok but once under a load the miss in the timing becomes noticable. i think theres something to do with the timing behind the opti. when my friend did his he told me about it but his is a 94 or 95. also, does that year have the vaccume line to it. if so might wanna check that.
You can't really screw the timing up, it all is indexed only one way, the ecu controls the timing.
Its not like a older distributer that you can adjust timing just by moving the cap around or anything like that.
Its not like a older distributer that you can adjust timing just by moving the cap around or anything like that.
Launching!
Joined: Dec 2005
Posts: 230
Likes: 0
From: Azusa, Ca.
Originally Posted by 1quickz
there is no maf on a 93 only year with out one it is not popping any codes
Since it's a '93 Im thinking the MAP sensor took a ****. Trending Topics
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