You’ve got a good eye, James! The CANdi module was not attached. The documentation (because I *ALWAYS* read the documentation first
) described the cables and connectors required for hardware initialization, so those were all I had used to that point when I took the screen shot.
This morning, I hooked it all up with the CANdi module (which did show as connected on the splash screen) and oh happy day, I was finally able to reset my fuel trims AND ALCOHOL PERCENTAGE!!! Cold engine from overnight, ignition ON engine OFF. Connected Tech 2, made the resets, then (about 10 minutes later) turned the key. Engine fired up so smoothly, the garage didn’t reek of unspent fuel in the exhaust, it didn’t want to stall while shifting into drive, and my goodness who knew that this would even be the resolution to my engine taking forever to heat up. I know a leaner burn is a hotter burn, but it was amazing just how quickly my engine warmed up to operating temperature. My morning consists of two fairly short runs (to daycare, then to work), and so my engine hasn’t fully heated up all winter on Monday to Fridays, just when I go for longer drives on the weekend (terrible for the engine, I know, but I’m not going to do laps just to get it warm). Well, for the first work day all winter my temperature gauge finally hit 100C, right where it should be.
Two slightly sour notes: one, as I approached work I pulled over and hooked up the Tech 2 again as I wanted to check on the LTFT and maybe start a recording as I drove the last little bit. The Tech 2 powered up in RS232 download mode again, and I had to go through the process of connecting the loop back plug and disconnecting from the ODB2 port so the RS232 Download Mode process could complete. I thought that was a one-time event. I’m glad I had all the piece parts with me!
Second, I noticed that the LTFT, while not in the -29% range with STFT a further -15ish% like before, had still crept down to about -17%. So it looks like I still have some detective work to do. Both banks’ LTFT and STFT were matching, as they were before the reset.
The good news is that I now get to dig into my shiny new service manual (or as shiny as a PDF gets, I suppose) and my shiny new Tech 2 and get to learn and play! I’m not afraid to do my own work of course (why else would I get the manual and a Tech 2 and make an effort to be active on TYF?
), but I don’t actually know very much about how it all works yet (MAF, MAP, O2 sensors, intake manifolds, etc. etc. etc.). I’m really excited that now I get to learn and troubleshoot with an actual problem to fix.