- Oct 22, 2018
- Reaction score
- Franklin, IN
I know! I actually saw your Grand Prix peel out of the raceway, and was really upset that I didn't get to talk to you guys and see everything I wanted to see.Sweet build! Wish I saw this when I was in the area last week for Power Tour, could have helped a little since I had my DHP with me.
I don't have much else to add that hasn't been mentioned already. Just keep an eye on that wideband when you're getting on it to make sure it's not going lean under boost.
If you have an exhaust leak before or slightly after the O2's that could be causing some weird readings on them causing the weird fuel trims.
+1 on the injectors probably not being scaled properly. Betting it has to do with the non-boost-referenced FPR in the stock rail vs what might be in the tune. You can always scale the MAF too to adjust for that though I guess when it gets tuned.
If you can somehow add the voltage from the analog output of the wideband to the log that'd be helpful.
Some folks use the EGR inputs to log the wideband since it's usually deleted on most turbo cars. No idea if that's possible with what you're logging with though.
Probably not a big deal though if you're not able to make changes to the tune anyway though.
Those are all good ideas. I'm not sure if my exhaust crossover is sealing very well, so I definitely want to check that. It has a v-band on one side and a donut flange with an ugly looking gasket on the other, so it's kind of a pain to get mounted properly even with the flex pipe.
I was thinking about changing the WBO2 wiring to be on the EGR circuit because right now its on the AC pressure switch, and I don't think I can log that. However, I would have to send the PCM out again to have that changed. Sadly I'm going out of town for a few days, so I won't have anything to report back with for a while.