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Thank you for the help !!!!

ok, i hooked my test light to a 12volt power source and shoved the test light in e11. I drove the truck down the highway, in 3rd and 4th the test light wood light up when i was going a steady speed....

Thank god! I disconnected the e10 wire and hooked it directly to ground and it finally locks the tcc up!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! First time ever the tcc worked.

Whatever the problem...

Okay, if i want to override the ecm to manually lock up the tcc, is there a way? Thanks

Where does e11 wire go or come from? It shows a brown wire for pmw tcc solenoid control? I dont have one

Ok, the truck is a obd1 so i can not to my knowledge turn the solenoid on or off with the snap on scanner. THe tcc solenoid gets 12 volts threw the main tranny harness and should if i understand...

Ok, i got 4th gear back after changing the pressure control module. I aslo updated the wiring harness inside and out of the case, which should have been done when it was rebuilt. I still have the...

For the first week it did shift in all gears including 4th, but has never had a tcc apply. I understand the ecm can kill 4th if the tcc does not apply, but i have swited ecms and still no change....

Anyother help? I pulled the pan and the tcc solenoid shows to work, i checked the wires to and from the ecm. Does the pressure switch justify what gear the ecm believes its in? Anyway to test a...

Howell Efi wired my harness and sent me a 7427 computer and chip. Yesterday i double checked the wiring that they sent me. If someone else has a wiring diagram i would be glad to compare and make...

I hope this is in the right post.

I have a 1993 chevy truck i swaped a 4l80e into, had a 4l60e
Howell efi did the computer and harness.
The truck has no 4th gear and no tcc apply, the scanner...