I want to verify that the information you gave me is good for the stock 3800 engine. I just found out that the PCM pinouts are different for different engines, but none of that material tells which engine is in the car so modified, and I never mentioned which engine I have. I have two questions:
1. What engine was this information based on? Is it good for the 3800 engine?
2. Is unplugging the PCM to insert the pin going to affect the anti-theft feature on my stereo? The reactivation codes were not in the paperwork when I got the car used. The former owner bought it at an estate auction, and they were missing then, so there is no way to reacquire them from the original owner.
Actually, I had thought it might be a semantics issue (different language used in different regions). I came across this many times in my former engineering position (I am now a college instructor).
That display looks a little complicated for my purposes. And I already have the wiring diagram for that relay shift mod, but rejected it, as it would set trouble codes every time it was used (I even designed a way to do it with only one relay before I discarded it).Slick idea with the gear status light! Check out this shift indicator. http://www.backinblackgp.com/SVII.htm
I stumbled across that years ago. Had to Google for that link. When I did, guess what I found! http://www.backinblackgp.com/2ndGearStart.htm
Actually, the tach will help me there. I just wanted to know which tach changes were shifts and which were TCC changes, and how far it downshifted on a hill (and of course, to verify that SGS was working).If you really want to econo-mod your throttle technique, monitor the Torque Converter Clutch (TCC) status. Keep it locked as much as you can. You could also monitor the purple wire from your pre-cat O2 sensor using an LM317 to a dashboard light. That line is a 0-1volt feedback signal. (I’m sure you’ve already researched this.) Set the threshold for 0.7v. For best economy, use a light enough throttle to keep that one flashing. If it’s on steady, you’re commanding Power Enrichment in open loop. The longer you stay in that mode, the richer you’ll be burning.