Pin out for 7427

[myburb]

Does anyone have or have a link to 7427 pin out with $31 mask. The one on bin page is for $OD. I want to compare 6395 $OE TO 7427 $31.

[dave w]

I don't have the exact schematics I can post.

$E6 and $OD is for the 4L60E Transmission.

$OE and $31 are for the 4L80E Transmission.

The only differences that I remember in the schematics $E6 / $OD vs. $31 / $OE is the transmission, VSS, and DRAC wiring.

I posted some schematics on post 8 of this thread: http://www.gearhead-efi.com/Fuel-Inj...-427-PMC-OE-31 that might help?

dave w

[myburb]

Thanks Dave. I went to the post but my old eyes just couldn't read it and if I made it big big I couldn't follow it so if you do run across them in an easier format it would be great.

[dave w]

Thanks Dave. I went to the post but my old eyes just couldn't read it and if I made it big big I couldn't follow it so if you do run across them in an easier format it would be great.

My local library has AllData Online, which is an excellent source for schematics. It's $0.10 per page to print, free if I save to a USB Memory Device.

dave w

[myburb]

Thanks, I live on a small island so don't have a library but have a friend in another town who I think used to have alldata. I will get in touch with him.

[dave w]

The posted schematics are for a 1994 C2500 5.7 liter / 4L80E

The schematics do not show the PCM part number.

dave w