Problem after installing new opti
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Teching In
Joined: Feb 2014
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From: Sac cailf
Problem after installing new opti I recently installed a new opti on my 95 camaro I've owned for 2 weeks while doing so I found out I needed a 94 opti not sure whether they did a motor swap or cam swap but anyways now I have a idle jump and jerking in low rpm when I drive it now I'm thinking it's something I did wrong while installing because it didn't do this before. Really need some tips to check out
12 Second Club
Joined: Feb 2012
Posts: 419
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From: Long Beach, MS
Best thing you can do is buy a cable and some software to data-log the car. If you can see what all the sensors are reading it could point you in the right direction and possibly prevent you from replacing parts for no reason at all.
What were the symptoms you had that made you replaced the opti?
I've had idle surging, bucking, and stalling at low rpm before on my 94. Once it was the temp sensor connector, the other time was the maf connector. The MAF actually caused the pcm to flash the SES at me though and set a code.
You may want to check the simple stuff first, as mentioned, crossed wires. Also you can insert the splined opti shaft in the wrong orientation, are you sure it's on correctly?
What were the symptoms you had that made you replaced the opti?
I've had idle surging, bucking, and stalling at low rpm before on my 94. Once it was the temp sensor connector, the other time was the maf connector. The MAF actually caused the pcm to flash the SES at me though and set a code.
You may want to check the simple stuff first, as mentioned, crossed wires. Also you can insert the splined opti shaft in the wrong orientation, are you sure it's on correctly?
Thread Starter
Teching In
Joined: Feb 2014
Posts: 16
Likes: 0
From: Sac cailf
Best thing you can do is buy a cable and some software to data-log the car. If you can see what all the sensors are reading it could point you in the right direction and possibly prevent you from replacing parts for no reason at all.
What were the symptoms you had that made you replaced the opti?
I've had idle surging, bucking, and stalling at low rpm before on my 94. Once it was the temp sensor connector, the other time was the maf connector. The MAF actually caused the pcm to flash the SES at me though and set a code.
You may want to check the simple stuff first, as mentioned, crossed wires. Also you can insert the splined opti shaft in the wrong orientation, are you sure it's on correctly?
What were the symptoms you had that made you replaced the opti?
I've had idle surging, bucking, and stalling at low rpm before on my 94. Once it was the temp sensor connector, the other time was the maf connector. The MAF actually caused the pcm to flash the SES at me though and set a code.
You may want to check the simple stuff first, as mentioned, crossed wires. Also you can insert the splined opti shaft in the wrong orientation, are you sure it's on correctly?
Like SS RRR said check everything that you've removed during the install. The wires first...you might have them in the wrong spot or not seated correctly. The air intake make sure its tight then and of course double check the opti....If everything checks out you might have a fubar opti.
Thread Starter
Teching In
Joined: Feb 2014
Posts: 16
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From: Sac cailf
Like SS RRR said check everything that you've removed during the install. The wires first...you might have them in the wrong spot or not seated correctly. The air intake make sure its tight then and of course double check the opti....If everything checks out you might have a fubar opti.
Not sure who your thanking, but I think you may have gotten a bad opti, or you need to replace the wires and see what difference it makes. What was the symptoms before installing this opti (are you sure it was the opti that was bad and not the MAF or something else?), what sort of opti is it specifically? I too recently had a hell of a time with a cheap autozone opti, first one was a complete dud, second one my friend crossed up the wires wrong on passenger side and it ran like garbage until I traced the wires....no issues to report so far (knock on wood) with opti #2. The "quality" of cheap optis (or MSD for that matter) is questionable at best unfortunately, it's a gamble if you get a good one or not. What mods does the car have? Headers are known to burn wires unless you do the OTV conversion or route them really good with zip ties. 
