Quote Originally Posted by Scottydoggs View Post
you can use either na or sc 97 pcm, dont matter. you can use the one in your car as well.

flash a 97 l67 bin file with the wot timing lowered one degree. cause its a top swap. you need a l67 map sensor and its pig tail and then swap th epig tail on your harness. and a bbv code deleted and of course you know you need headers for a top swap,

so delete the cat and rear o2 sensor codes. delete the egr also if you want to get rid of that.

if you want i can send a bin file for your car all set up. takes no time to build a canned tune really. actually, i got one already i made for another guy a while back. all 97 bin files work for you guys, no security learn that year.
Thanks for the help, good to know that I don't have to track down an actual L67 PCM. I bought a 1997 L36 PCM today, so I should be in business pretty soon.

This is actually not a top swap. Here's the longer version of the story:

The car is a 1996 Firebird 3.8 5 speed manual and I am planning to turbocharge the L36. The plan is to run around 6 psi and end up with a fun daily driver. While I could tune the 1996 PCM, the 1997 PCM is a direct plug in for 1996 cars and from what I've read, it is just better overall in terms of processing power and aftermarket support.

In terms of PCM code, I could have chosen one of two routes:

1. 1997 Grand Prix GTP bin file
Pro
-Seems to be very popular, lots of support
-.bin files very easy to get
-already set up for boost
Con
-requires different MAP sensor
-not set up for manual trans
-may not have provisions for the clutch switch input that disables cruise control


2. 1997 Camaro 3.8 M5 bin file
Pro
-Perfectly matched to car and trans
-Can use existing MAP sensor
Con
-Seems to be uncommon, possibly not mapped well, not many people talking about these
-Have not been able to find this .bin file for free on internet
-Rare to find these PCM's in junkyards or on eBay
-Will need to tune for boost
-This code uses FOUR oxygen sensors: I can't use the bank sensors since they would be pre-turbocharger, not sure if I could tune them out?
--1 on each exhaust manifold (bank sensors)
--1 on y pipe before cat
--1 after cat

It just made more sense to run the L67 PCM because of how much support is available, and the list of cons is fairly short and should be easy to work around.

I appreciate the offer on the .bin file. I don't know that a canned tune would work well given the turbocharger, but seeing the .bin file for a generic boosted L36 or top swap would at least give me somewhat of a starting point if you have anything like that to send.

Do you know if the later L32 MAP sensor puts out a signal identical to the L67 MAP sensor? Reason I ask is because the L32 MAP sensor is physically the same as the L36 Fbody sensor, it will bolt to the intake and plug right in to the harness with no mods. I've ready some reports that say they are interchangeable but I want to make sure.