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. Thanks, Any help is appreciated.

 

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