95 M6 PCM in 97 M6 car??
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From: Milledgeville, GA
Yeah, that is what I said it looked like above from listed part numbers. I wasn't 100% sure if it was same for all OBD2 or if maybe a LT4 sensor superceded for all OBD2 ones. It's good to see that they are (& were) all the same for 96+. The reason I had brought up an LT4 knock sensor in the first place was someone's post (somewhere on this forum) about swapping to LT4 module and sensor at the same time. Anyway, I plan on just swapping my knock sensor for the OBD1 style and throwing the 95 PCM in....then getting a friend to make the tuning changes for the EGR!, CAGS!, 160* T-stat, and, 4.10's. Is the AIR! anything to tune for? I don't think it throws any codes. Not sure.
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Thanks for the warning. I wouldn't have known for sure if I hadn't read it last night in a thread about someone breaking off their sensor. They mentioned drilling it out, and several people replied that he should use a cordless drill. I'm sure he appreciates that warning alot. That would be an aweful way to go.
I have a '96 Z28 that I'm interested in converting to a obd 1 car. I've read this thread, but it never seemed clear to me as to what exactly was needed.
Things needed:
obd 1 pcm
obd 1 knock sensors
Is that all?
Things needed:
obd 1 pcm
obd 1 knock sensors
Is that all?
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From: Milledgeville, GA
I've been running my 97 M6 SS off a 95 pcm from a M6 Trans Am. My car is a 3 channel ABS...it was a 4 channel, but that didn't make any difference. The only problem I had was that my rear gears were already swapped to 4.10 and I'd deleted EGR. A friend took care of that in the obd1 pcm with tunercat.
There are zero wiring mods to make. Just disconnect the battery, swap the knock sensor, swap the pcm, reconnect the battery and you're done. I didn't even think to disconnect the battery and had no problems, but I'd advise against leaving it powered.
Safely tuning out a knock sensor requires running less timing than optimum to be safe from detonation. Otherwise with a KS you could raise the timing and in that rare instance it detonates even on a perfect normally knock free tune, it can pull the timing to save it.
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From: Kingfisher Oklahoma
I don't know how we did it without EFi for so long.
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Verdad Gallardo TECH Fanatic
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From: Kingfisher Oklahoma
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From: Kingfisher Oklahoma
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From: Kingfisher Oklahoma
But seriously i agree with you partly that for your everyday drive around program to be on the conservative side , if the KS is tuned out, but I allways go agggresive when I know the quality of fuel.
For instance (I have tunercats and a wideband) when I drive to work or around town on 91 I do like you suggested and though the curve itself is somewhat aggressive the total timing would be about 4 or so down. When I am at the track I have a different program I load since I am running 100 plus unl.
In addition, if you don't want to take the time and tune your stuff for differnt situations you shoudnt be jacking with stuff...lol
Last edited by WS Sick; May 4, 2011 at 04:17 PM. Reason: additional thought
why not just do the efi connection thing and be able to use hp tuners and stay obd2 legal
http://www.eficonnection.com/eficonnection/default.aspx
http://www.eficonnection.com/eficonnection/default.aspx
