98 wiring harness 99 pcm??

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Sep 16, 2011 | 02:57 PM

ariel27

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From: Daytona Beach FL.

98 wiring harness 99 pcm??

Hi Guys. I'm a newbe here on the forum and would like to ask the experts on this subject. I have an 98 Camaro LS1 with a T56 trans. I was wondering since their are alot of hand held tuner available. My question is can I use a 99 pcm on my 98 Camaro? Most hand held tuners available on the market are for 99-up. Any input is greatly appreciated! Thanks! Ariel

Sep 18, 2011 | 05:28 AM

NAVY

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From: KUWAIT

i think you cant use 99 pcm in 98 harness .

Sep 18, 2011 | 06:27 AM

95cam86roc

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From: OH IO

I thought you would have to repin your harness to use that PCM? Idk I might be thinking about something else.

Sep 18, 2011 | 09:02 AM

02 BLK WS6

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From: Glen Carbon, IL

You have to repin the harness.

Sep 18, 2011 | 07:48 PM

salemetro

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From: Salem/Keizer

Quote:

Originally Posted by 02 BLK WS6

You have to repin the harness.

^^^^ +1

For one thing, the gauges in the 98 are all "direct" to respective sensors....the 99-up is PWM controlled through the PCM. Ask me how I found this out LOL

Sep 19, 2011 | 04:58 PM

Christian Dionne

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From: Orlando

Where can I get the pinouts or schematics for this? My dad has an '96 lt1 running a 411 pcm from an '02. We wanted to convert my '98 to a 411 as well. Am I crazy to think about doing this?