LSwonderfull

I have a 2001 Z28 and I swapped M6 to A4, I re pinned pcm for all necessary controls and removed the m6 circuits. The problem is it starts and than stalls after a few seconds. The desired rpm with HP tuners scan reads 0 rpm. I have tables filled with 1000 rpm min. The previous tune ran flawless with the m6. Any help is appreciated... Oh and no dtcs....

mrvedit

Did you have the PCM switched from the M6 to the A4 software segment/OS?

LSwonderfull

Im not sure, do I have to find segment numbers from a A4 tune?
Calibration details shows 4l60e for trans

LSwonderfull

Can you go over this procedure? I tune myself with Hp tuners

mrvedit

Sorry I do not know the procedure.

Perhaps one of the tuning experts can explain or link to an existing thread. (I suspect this has been covered many times.)

LSwonderfull

Can anyone tell me if m6 to a4 swap needs re-burn of oem pcm to a4?

LSX Power Tuning

iTrader: (4)

I always flash the pcm over to an auto and then start tuning it. Way less problems and headaches that way.

LSwonderfull

So I need to license a automatic car, read it and than reflash to my pcm?

LSwonderfull

? to the top ?

LSX Power Tuning

iTrader: (4)

Thats the best way to do it. The other way would be do a segment swap and then copy over the other tables by hand.

RacerBill

iTrader: (20)

This is what I ended up doing.

My car was previously a M6, and even after the segment swap, I noticed during the log that the Desired RPM was 0, which had me using the throttle to keep it running. After doing some digging, I forgot to compile the rest of the Idle target cells in the tune. DOH!

A work-around for this in the time being is to go into the VCM scanner and command a certain target idle speed.

Hope this helps!

LSwonderfull

How exactly do you do a segment swap?

RacerBill

iTrader: (20)

http://www.hptuners.com/forum/showth...wapper-utility

LSwonderfull

ok so do i need to licensce a a4 vehicle to use its segment swap info to swap to mine?

RacerBill

iTrader: (20)

Yes, or find someone that can do the swap for you then get them to send it back. Just gotta make sure both files have the same OS IDs and be sure to maintain the VCM ID.

LSwonderfull

Segment swapper does not show up in any drop downs on my version of hp tuners, I tried everything. I don't have Pro version of Hp T is that why?

RacerBill

iTrader: (20)

When's the last time you've updated your editor or scanner? They have updates almost daily. Gotta make sure you have the version (or more recent) in which the segment swap was enabled.

LSwonderfull

I just searched segment swaps on here and found someone who said HP tuners doesn't allow segment swaps with user software but (HPT) they will do it for free. Is that true?

LSX Power Tuning

iTrader: (4)

You can do it with hp tuners beta yourself

RacerBill

iTrader: (20)

Did you upgrade your version of the editor? If you read around more, you will see that they got out of the segment swapping business so to speak; it's on the user now they added the functionality to the editor.

This.