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TheMechanic /obthomas- Yes! thats exactly what I need. one of the 944 forums used to have these but they stopped carrying them. This is way better than what I currently have.

LS ROB Thanks I...

Thanks for your response although I think part of the problem is my lack of understanding in some ways of how the E38 operates. Some of the Porsche swap related forums state that the fidelity of VSS...

Thanks for all the replies. I did want to say that initially (one drive to the grocery store), the BRAF edits seemed to fix the problem. I also just copied the values in Neutral, to all the other...

Thinking about this for a minute. Since the M96 Porsche transmission is completely mechanical, my ECM has no way of knowing what gear the trans is in. I should somehow make all of these values the...

I've never touched this table. I probably need to steal a table from someone's tune to get this better in line with what it needs to be.

Rob, Thanks for the reply.

Apologies, not sure which table is the base running airflow table. Is it under Idle -> Airflow?

I am running a Gen IV 5.3 mated to the Porsche M96 manual transaxle. ...

Car is an 01 Porsche 996 with 08 5.3 E38 ECM.

I installed a speed sensor/VSS on the axle from Dakota Digital.
As I'm driving when I clutch in RPMs either stay stuck or very very slowly come down....

thanks. Do you know if in addition to the CANBUS a/c request signal if i would need to hook up a pressure sensor to the E38

Here is my understanding of what the E38 does.

1. waits for a/c...

I'm wondering if i need something like RPMExtreme GM E38 A/C Request module?

I can't seem to figure out how the E38 can be used to control the a/c relay.
The Porsche computer is fed inputs from the climate control computer (a PWM signal when on, no voltage when off) (2001...

Thanks for the help. I have upgraded to the 2 bar OS as you suggested. I followed instructions but now my VE tables are all zeroed out. Can I copy in my old Virtual Volumetric Efficiency numbers to...

I've been slowly trying to learn how to tune the idle on my Porsche 996 5.3 swap with a z06 cam. I have 2003 flex fuel delphi injectors from a suburban 5.3.

I keep leaning out my virtual VE in the...

Thank you so much! So far no P0606 but I haven't had a chance to really get on it. I opened the P1516 error to 15%

Mark, I'm new here but did you think about the chemical equations?

Methanol 2 CH3OH + 3 O2 → 2 CO2 + 4 H2O
Gasoline 2 C8H18 + 25 O2 → 16 CO2 + 18 H2O

Gasoline takes 25 molecules of Oxygen to...

Also you can see thats the first time ive ever commanded the system into Power Enrichment. If I keep it out of PE it runs fine. Is there any setting that can drive a PE into limp mode.

I'm trying...

Yes, you are right about the MAF and the DTC's haven't been disabled yet. I was running a MAF but I just took it out (unplugged it) to work the SD tune.

You are correct too that I may have to...

I'm SD tuning my 2008 E38 ECM and attempting to run the Porsche 996 gas pedal. The car operates fine except under heavy throttle. From a start at the end of the log file I accelerate heavily from a...

Schpenxel,

That makes a ton of sense. I'll log MAF Hz and shift my curve as you suggest. Why didn't I think of that!

I'm new to tuning in general and doing my first LS swap into a porsche 996. I built an aluminum block 5.3 from an 07 Silverado with a LS2 02-04 cam.

I'm having problems with short term fuel trims...

Thank you. I think this will save me some time in the long run. I guess I will throw in the towel and go to a vette pedal.

This is my first post so please be understanding. I'm swapping an 07 Gen IV 5.3 into a 2001 Porsche 996 and attempting to retain the Porsche gas pedal. I have an 08 Corvette ECM with an LS2 TB and...