Swaping E38 into VZ HSV with E40 PCM

Converting To Delco ECU From Carby Or Other Injection Systems
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Swaping E38 into VZ HSV with E40 PCM

Postby GMHDarwin » Sun Sep 29, 2019 9:55 pm

Do any one have experiance with swaping out the factory E40 ECU and replacing it with the E38, for the prpose of running the flex fuel setup.

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Re: Swaping E38 into VZ HSV with E40 PCM

Postby 80gus » Mon Sep 30, 2019 8:30 pm

as the E40 is a 24x crank trigger, and the E38 is a 58x its not going to work very easily almost not possible without pulling the motor apart and replacing wheels ect

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Re: Swaping E38 into VZ HSV with E40 PCM

Postby GMHDarwin » Wed Oct 02, 2019 4:16 pm

80gus wrote:as the E40 is a 24x crank trigger, and the E38 is a 58x its not going to work very easily almost not possible without pulling the motor apart and replacing wheels ect


I want to run a flex fuel tune in my 2004 VZ, So just trying to find besy way to do it.
I understand that the reluctor wheels are different for each ECU.
If the E38 will plug in and communicate with the rest of the car, then upgrading to crank is worth it as we will be going fordged in the near future.

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Re: Swaping E38 into VZ HSV with E40 PCM

Postby antus » Wed Oct 02, 2019 5:10 pm

You should be able to run flex on the 1mb pcm with an american operating system. I'd look in to that rather than changing to an E40.
Have you read the FAQ? For lots of information and links to significant threads see here: viewtopic.php?f=7&t=1396

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Re: Swaping E38 into VZ HSV with E40 PCM

Postby 80gus » Wed Oct 02, 2019 8:30 pm

Quick google search shows people using flex fuel on a E40 its all there on every file I have opened
flex fuel pin is pin 4 on the bottom connector on the E40.

Again, Pin 4, C3
why not try that first

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Re: Swaping E38 into VZ HSV with E40 PCM

Postby GMHDarwin » Fri Oct 04, 2019 3:45 pm

80gus wrote:Quick google search shows people using flex fuel on a E40 its all there on every file I have opened
flex fuel pin is pin 4 on the bottom connector on the E40.

Again, Pin 4, C3
why not try that first


Was just thinking if the E38 is better suited to ethonal, then swapping this in to car would make more sence than trying to hack an E40 as It was never intededto run ethonal.

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Re: Swaping E38 into VZ HSV with E40 PCM

Postby antus » Fri Oct 04, 2019 6:30 pm

The americans ran flex on the same hardware as us in some models since the ls1 computer. Its not a hack, its a factory feature we didnt get in our market on the same platform.
Have you read the FAQ? For lots of information and links to significant threads see here: viewtopic.php?f=7&t=1396

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Re: Swaping E38 into VZ HSV with E40 PCM

Postby Tre-Cool » Sat Oct 05, 2019 10:52 pm

i've ran flex fuel in a few e40 ecu's. no hacking anything. the tables/code have been there since day 1.

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Re: Swaping E38 into VZ HSV with E40 PCM

Postby GMHDarwin » Wed Oct 09, 2019 6:44 pm

Just sent an email to Dave Steck DSX Tuning, asking the question.
Here is his reply.

Dave: I’d be checking it to make sure it has the necessary flags to enable flex fuel

Hi Dave
Thanks for the reply,
I dont have the file.
Can you tell me what the file will tell you?
Thanks.


Dave: It should be. Can you send me the HP Tuners file from the vehicle?

Nathan:Hi Dave
I am looking at upgrading my 2004 HSV Clubsport.
The car ECU is an E40.
I would like to push the 1900 TSV Magnuson to around 14 PSI and run a flex fuel setup.
So before I start spending $$$ on forged parts,
I was wondering if you can tell me if my factory E40 ECU is capable of running a flex fuel tune.

Much appreciate your time.
Thanks

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Re: Swaping E38 into VZ HSV with E40 PCM

Postby Tre-Cool » Fri Oct 11, 2019 9:34 pm

i can tell you with 100% certainty. it will work.

I have a vz clubbie at my house that i put flex fuel on.

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