Having problems doing a case learn

[DrLoch]

I've tried to do the case learn. Did as the instuctions say,
Car is in park
Apply Parking brake
Apply the Foot brake
I can rev the motor past the 4K-5K range with no cutout.

I get a message saying the car is moving. ?? Any help?

This is an LT1 with a 24x EFI conversion. 411 PCM with a 2002 F-Body tune. Automatic

Thanks
Dennis

[Google]

vss is sending a signal to the pcm.. pull the vss input wire/pin from the pcm and try again

[DrLoch]

Will try that an report back. In the garage working on it now.

Thank you

Dennis

[DrLoch]

Now comes back and says RPM High. Do I need to adjust my Fuel cutoff ? It's at 6200

Dennis

[Google]

yes set it to 5200

[DrLoch]

Will do

[DrLoch]

reset to 5200, still no learn.

Dennis

[Google]

what did it say?

[DrLoch]

RPM too high

[Google]

post your tune.. whats your idle rpm at while idling? more then likly it is alot higher then what the pcm is commanding..

[DrLoch]

Here it is. I tried with CO @ 5000 with this one Same results

Dennis

[Google]

what is does your tach say at idle?

[DrLoch]

It is matching the scanner. ~950 - 1000

[Google]

too high for case learn.. drop it as low as you can to factory settings without dieing and try again..

[Google]

also wana change your engine diag/general - p0121 max to 100 and min to 0 to keep from setting the code under boost.

[DrLoch]

In Special tab I set Idle to 600. It would idle that low to start test, I raised RPM till it cut out ~ 4k and then I let it come back to idle, it was a high idle then fell back to ~ 600 again. Still no learn.

Do I need to adjust the idles in the tune, reflash and try again?

[Google]

I would try it... but it is starting to sound like you have some wiring issues.

[DrLoch]

I tied that and I lowered the FC. No success.

What is it looking for that I'm not providing, or is corrupt?

BTW I changed the PO121 to 100 and 0 as you suggested, Thank you

[Google]

I tied that and I lowered the FC. No success.

What is it looking for that I'm not providing, or is corrupt?

BTW I changed the PO121 to 100 and 0 as you suggested, Thank you

I would need to know your wiring setup.. what sensors and how your getting your tach signal.. you have already had to pull your vss and now rpm is not right.. so I am just guessing at this point.. I would guess, something is not sending the correct signal to the pcm..

you using 2.22?

[DrLoch]

Using Beta 2.23.

I have schematics of how I changed the wiring from the LT1 PCM to the 411. They need some minor updating from some running changes I made. I can forward then to you in an e-mail if you would like to see them.

The car is running (Idleing) with the tune I posted although the right (PS) is running richer than the driver side. The tune needs alot of work once I am able to move the car (no wheels). Fro now I was working on the idle portion, IAC, IAC counts, and trying to scale the MAF. It is the newer GM MAF. As you can see its a blower car. ProCharger F1, just got it started on thursday.

This is a B-Body Imapala SS. Hasn't been on the road for ~8 years now. Did a complete redo except for the exterior paint. Frame removed blasted, tig weld all the seams, blast again and then powder coat. I've done more than I can or should explain in a post.

Thanks for the help.
Dennis