sssalah

So I've swaped in L76 with M6, harness and PCM out of a 99 Z28 in my 97SS.
My problem is that the reverse lockout doesn't disengage because it's not recieving ground from the PCM.

It turned out the PCM I got is for an automatic and I already used 4 HPT credits for that PCM 2 of which are for the custom OS.

I have no clutch anticipate switch and not sure if that is required for the reverse lockout to operate as it should.

99LS6SS

iTrader: (4)

Have you looked under the transmission tab in hp tuners at what speed the reverse lock-out engages/dis-engages?

sssalah

Yes, for the auto PCM it is set at 8 and 6 mph, while for the manual it's 3 and 2 mph. I even tried the manual controls at the scanner but it would not disengage. Ran a seperate ground to the solenoid and it worked.

sssalah

The A4 pcm never gives ground to C2 pin 44, hence the reverse lockup will not work.
Reflashed with an M6 base tune and it is working perfect.

Daryn

iTrader: (19)

i grinded the pin down on my reverse lock out