Leaderboard

This morning I tried the power sunroof to see if it would work. It hadn't been opened since 2008. First I pushed the button to make the back of the glass sunroof tilt up. I heard a little pop like it was stuck and then it went up. It has a bellows between the roof and the glass so I cleaned it and the seal around the glass really good before closing it back down. Tried the tilt function again and it went right up without making any strange noises. Next I tried opening the sunroof that slides back into the roof. I was nervous about doing this. I was afraid it would open and not close back. To my surprise it worked like new, both back and forward. The person I got the car from, my 2nd cousin, said the sunroof had only been used a handful of times since her parents bought the car new. Another thing I can check off my list of things that need attention.

For context, this is a 1989 replacement engine in the 1988 Reatta. The balancer is apparently not original but it is unknown if other items were replaced inside the front cover. Is it possible the balance shaft is out of phase if a mistake was made doing a timing set? Unknown. This was a little snippet I found for the reason for the strobe or timing light. Strobe Light Applications for Machinery Problem Solving (automation.com)

What is interesting is the Instrument reading is 5 MPH but the output from the Engine module is 0 (zero). As soon as the car starts to move the speedo approaches toward zero and starts reading the actual speed. I have been looking all over for the spot where I can zero that value, but I am beginning to think it is a parameter on the EEPROM. I'm not sure I have the skill set or equipment to tackle that. At one time I would have, I worked on all sorts of communication - navigation and electronic systems, but my eyes, memory, and steadiness of hand are not what they once were.

Is this the Bosch system? Unshielded wiring or two conductors with a shield?

All mounts have been replaced. I am not able to move the motor by hand.

Hmm, I know nothing about the Tech1 but is there a zero button or anything like that to essentially do a reset to start a session? I have seen that with some other sensors or indicators where the key on supplies potential on the circuit and I imagine it is some sort of electronic noise or feedback causing this. I just looked at my 90 and key on, and engine running, or not, it displays zero. Even though the displays look similar the 91 has a different ECM. Something new every day but no help😖