Flex fuel L31 using the 0411

[Awest623]

However, the scanner and tach are reading the correct rpm. So I think this can be done without swapping to a 24x sensor

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[Awest623]

I'll try y'ing the ignition outputs next. Just need to pick up some more pins and some diodes

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[Awest623]

Couldn't source any diodes locally. And I don't have a mailing address right now. Guess we'll see if this frys the computer tomorrow.

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[Old 96]

Couldn't source any diodes locally. And I don't have a mailing address right now. Guess we'll see if this frys the computer tomorrow.

You must be registered for see images attach

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Looking forward to your results. I fooled around with tbe Tahoe OS. But didn't actually delve into too deep as I ran out of time

 

[Dewman67]

The l31 express van os just uses coil 1 output for firing old style distributor.

As far as the flexfuel, you need flexfuel os, sensor, and you will need to upsize your injectors by about 30% to run e85.

 

[JayMB]

'03 Tahoe OS can run coil-near-plug on a 4x reluctor? If that's true I'll go coil-near-plug on my L31. I thought you needed 24x crank wheel for CNP?

 

[Awest623]

'03 Tahoe OS can run coil-near-plug on a 4x reluctor? If that's true I'll go coil-near-plug on my L31. I thought you needed 24x crank wheel for CNP?

Maybe. I'm not positive but it looks like it.

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[Awest623]

The l31 express van os just uses coil 1 output for firing old style distributor.

As far as the flexfuel, you need flexfuel os, sensor, and you will need to upsize your injectors by about 30% to run e85.

Hence the Y, tahoe OS, and 56lb injectors

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[Dewman67]

Sounds like you have it all covered.

On the subject of cnp, you can't run cnp on a 4x reluctior ( not enough resolution), you will have to upgrade to a minimum of a 24x. Efi connection has one that's not to expensive. You'll have to tare down the front of you motor to change it.

 

[JayMB]

Sounds like you have it all covered.

On the subject of cnp, you can't run cnp on a 4x reluctior ( not enough resolution), you will have to upgrade to a minimum of a 24x. Efi connection has one that's not to expensive. You'll have to tare down the front of you motor to change it.

Thanks, this is what I thought. Aren't they like $175 for the reluctor? At one point they were around $99, that would have been an alright price.