opti saying final goodbye?
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Joined: Apr 2006
Posts: 12
opti saying final goodbye?
so my car has been messed up for a while lately..changed o2's,coil,plugs,wires,fuel pump and icm and the car is still not runnning right...today went to the track and the whole way there the car felt like it was running really rough and boggy
On the way back the whole time the car kept misfiring and when i floored it 3/5times around 4500-6000rpm it misfires and crackles like its job, then just driving its popping and running real bad and jerky...think my opti is going on me, the car does have 104k on the clock
On the way back the whole time the car kept misfiring and when i floored it 3/5times around 4500-6000rpm it misfires and crackles like its job, then just driving its popping and running real bad and jerky...think my opti is going on me, the car does have 104k on the clock
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Joined: Apr 2006
Posts: 134
From: FLORIDA
Re: opti saying final goodbye?
Originally Posted by snack1pack
so my car has been messed up for a while lately..changed o2's,coil,plugs,wires,fuel pump and icm and the car is still not runnning right...today went to the track and the whole way there the car felt like it was running really rough and boggy
On the way back the whole time the car kept misfiring and when i floored it 3/5times around 4500-6000rpm it misfires and crackles like its job, then just driving its popping and running real bad and jerky...think my opti is going on me, the car does have 104k on the clock
On the way back the whole time the car kept misfiring and when i floored it 3/5times around 4500-6000rpm it misfires and crackles like its job, then just driving its popping and running real bad and jerky...think my opti is going on me, the car does have 104k on the clock
1. check for codes
lots of sensors can cause this , map , tps, cranshaft sensor,stuck open egr ....
may be a cranck shaft sensors i know 96 lt1 had them and dirt or debree on a cranshaft sensor can cause that.check your opti with an oscilisscope is the best tool to see if there is a problem with the opti.
Last edited by scarface007; Apr 28, 2006 at 10:48 PM.
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Joined: Apr 2006
Posts: 134
From: FLORIDA
Re: opti saying final goodbye?
Originally Posted by snack1pack
i got a 94 z28, can the codes be seen if there is no ses light?
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Joined: Nov 2005
Posts: 38
From: Deland, Florida
Re: opti saying final goodbye?
The 94 Z28 Opti is OBDI but will not flash codes when shorting the A & B pins. You have to buy a cable (like I did) and download some free software to your laptop. You will then have access to a wealth of great information, including any DT codes.
You can search this site for cable manufacturers, or e-mail me and I will tell you where I bought my cable. Shorting the pins or using a hand scan tool will not access the OBDI on the 1994. I believe that it will on earlier models. Trust me, I went the first route until the guys on this site set me on the correct path.
You can search this site for cable manufacturers, or e-mail me and I will tell you where I bought my cable. Shorting the pins or using a hand scan tool will not access the OBDI on the 1994. I believe that it will on earlier models. Trust me, I went the first route until the guys on this site set me on the correct path.
Thread Starter
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Joined: Apr 2006
Posts: 12
Re: opti saying final goodbye?
ok i got a cable but someone cut the ends off it and its just 3 bare wires now...a green one, a clear white one and a black one, which goes in which slot...and what free program can i get
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