I did the search through the archives and found a little. I have found in my painless wiring kit a wire for VSS? and on my passenger side cyl head a sensor. I was under the assumption that an 89 IROC was cable driven. Which i have seen behind the dash. And i'm confused what the 2nd sensor on the pass. side head is for. I have one on the manifold in the coolant passage and one on the drivers side head in the coolant passage what's the one on the passenger side for? Reason i'm asking is because in the archives i read that the Torque Conv. won't lockup if it doesn't see the correct temp. I was also wondering if maybe the VSS wire had something to do with it also? I hate doing 2,000 RPMS @ 60 w/ 2.77 gears. BTW i know the Torque converter isn't locking up because i installed a temporary switch to test and see if it was. And it wasn't @ 55 the rpms went for 1600 or 1700 to 1500 or 1400. But the car kind of bucked when i had it lockup up for maybe 10 - 15 seconds. I did hook up a test light to the aldl pins for the torque converter lockup, and it stays on unless i hit the brakes which has me baffled. I posted this in the drivetrain board w/ no replies. Thanks, Any help is appreciated.

 

I can't be of much help on your TC lockup problems, but the do unlock the minute you step on the brakes, thats why you test light is going out. Also yes, a TC doesn't usually lock up until the car has warmed up some. My thermostat being stuck in my other car this winter was so bad the temp of the car would go DOWN enough after you started driving that the TC would Unlock! Its interesting, if you have a good testlight at the ALAD, that would seem to rule out sensors and ECM troubles. But this is definatly out of my scope at this point. Good Luck.

 

Branz,

You need a VSS signal to enable the TCC relay. The ECM will prevent the TCC lockup until the VSS indicates 41 MPH or more.

How's it been goin'? Haven't seen any posts for a while.

 

It's going good vader. Between college, girlfriend, job and this project with the car i have little to no time to post anymore. Go figure.