PCM's and tuners with swapped engines
 

When you buy a PCM tuner you typically buy the rights to a certain model & year PCM, i.e. 1999 Bonneville, or 2001 Grand Prix, etc. right?
Let's say I wanted to get a tuner for my 1999 SSEi, but there's a chance I'll eventually swap engines to an L32 from a later generation Grand Prix.

Will my 1999 Intense PCM run the L32 just fine or do I need to use the L32's PCM?

Most tuners will do them all but some of them will charge you extra via a point system.
The DHP PowrTuner will do them all with a one time cost.
You will have to reprogram if you swap to an L32.

So I assume I would lose my Intense PCM parameters in this case :?

No you wouldn't lose them necessarily as I understand it.
Yes you can edit any # of files for .......

Suppose you're screwed if you have a 97 or 03+. :?
......but you will be able to tune for an L32 swap. ;)

Sorry for playing devil's advocate, but isn't the L32 post 2002?

Re: PCM's and tuners with swapped engines
 

You can reuse your PCM/wiring harness from your 99SSEi, the L32 will hook up easily to your L67s sensors and such requiring no changes in the pcm.. Any parameters that you would need to change depends on if you put anything new in addition to your current mods; ie MAF or injectors.


04+ I think (possible late 03 too)

Ed

The '04+ L32 is likely to have different MAF sensor, different injectors, and different S/C settings. If you were to swap in the whole she-bang, you'd need these things reprogrammed for sure.

If you were just swapping in an L32 longblock and keep your old TB, sensors and S/C, I think you'd be fine.

The L32 has a drive by wire TB, EVAP sensor, Map sensors that are different & can't be used easily in swaps replacing an L67. Most people keep their L67 TB or use a Northstar TB since they can't reuse the drive by wire TB and inline MAF. The L32 injectors are smaller then the L67 ones so most reuse their L67 injectors.

If you were to swap an L32 it would pretty much be the same as swapping the Gen 5 on to a L67 longblock; everything else is a plain engine swap. All the little problems in the swap are in the top end and are very easy to address once you know what you have in front of you. As for tuning with the Gen 5 I'm not sure if that changes anything that would cause issue if not tuned for.

WOAH...WOAH......hold on here..

there is some Inaccurate info going around this thread...


Personally I have used and currently use HP tuners....althought DHP sells a UNlocked version, that will do all 97-03 L67's

HP tuners will allow you to access your file, and mod it.....now currently i have a tune that is wating to go in, that has the 04+ L32 timing tables in it....among other changes

I have Bin files from a 04 MC SS, 04 Impala, 04 GTP, 05 GTP, and so on...and so forth....i have about 7 different L67 files to look through and compare

what you can do is go and compare your 99 SSEi file to the L32 files, and then copy the L32 files into your SSEi PCM....this is what i did to get the L32 files into my 03 PCM..works with out a problem, and just fine....

with the DHP you can do the same, but the user interface on the HPT is SOOO much better....

If you know that your ouly going to tune 1-2 cars, than the HPT is such a better choice its not even funny

While that may be true, you also have to consider the cost......and it really can't be that much better.

DHP - $388.

HPT - $650 + cost for points