Anyone ever put a 98 PCM/harness in a 99+ car?
09-22-2009, 02:31 AM
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Anyone ever put a 98 PCM/harness in a 99+ car? Not much of a hybrid, but was wondering if anyone ever had a 99+ LS1 f-body and put a 98 PCM/harness in the car. I wonder because I am about to be in that boat and it occured to me that the gauge clusters and such are different in regard to analog vs. serial feed. A point in any direction would really help.
09-22-2009, 12:33 PM
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What I am doing is I have a 94 LT1 car right now. I have a wrecked 99 SS donor car. I still have to drive the car during this process, but I have already replaced the WHOLE body wiring harness, in and out. Under the hood, ABS block, inside the car. Everything. I know that the 99+ cars run a serial feed to operate the gauges. I also know that 98 and under are all still analog, LT1 and LS1. So if I had a 98 body harness and such, it wouldn't be that big of a deal because all of my signals are still analog and everything would work, less the tach would be wrong.
I am pretty much doing this because it gives me something to do and try.
But my question still goes back to being able to get all of my proper LT1 signals to go through the BCM to the cluster in a 99+ car.
I am pretty much doing this because it gives me something to do and try.
But my question still goes back to being able to get all of my proper LT1 signals to go through the BCM to the cluster in a 99+ car.
09-22-2009, 09:09 PM
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Yup. 
I figured it would make life easier later down the road and not such much of a pain it currently is. Plus I couldn't find anything about someone doing this before and I like trying new stuff. So I figured it was worth a shot.
I figured it would make life easier later down the road and not such much of a pain it currently is. Plus I couldn't find anything about someone doing this before and I like trying new stuff. So I figured it was worth a shot.
09-22-2009, 10:16 PM
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I just said 98 because I knew it was still analog.
Long run is I , in theory, would be putting a 94 LT1/harness/PCM in a 99 SS. And want the cluster to work.
Long run is I , in theory, would be putting a 94 LT1/harness/PCM in a 99 SS. And want the cluster to work.
09-23-2009, 08:03 AM
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Why the hell would you want to do that?
09-23-2009, 02:06 PM
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Did you guys not read my post? It is simple. I have a 94 camaro that I drive everyday. I have a wrecked 99 camaro that will never driver on any road. Everything from the 99 is going to the 94. Wiring, motor, fuel tank, etc. I want to build the motor up before I put it in the car but want to put everything else in the car now (i.e. wiring, tank, brakes, steering rack, etc). And when all that stuff is in the car, the orginal motor will still be in there for a while. I just want to get the car to function for a while until I finish the LS1. And I also want the important gauges to work like the oil pressure and coolant temp.....
09-23-2009, 07:54 PM
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So far it is coming out to be a PITA. The only thing that sucks about this is the car was an auto where mine was a 6 speed and for some reason, the center console was removed and they cut the harness that runs under it. Didnt take the console or anything. I just dont know what wires are for "Park/Neutral" so I can get it to turn the starter over.
09-04-2011, 07:33 PM
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I have a 98 everything from a z28 going into a 00z28 but my gauges dont work but the car drives....how do i get my gauges to work and the traction control to work..? My 98 had no traction control but the 00 has the button and abs module already...? Im lost someone please help me!
