I followed Noah's last post a good bit yesterday, and seemed to make a little more progress. I set my fuel pressure to 34 with the hose off and 28 with it back on. Then I tried again on the VF Signal. It held a reading pretty steady most of the time. I could actually add or take away fuel, and be prett close to estimating what the VF would be. But, when it should have taken it to 2.5 (the target), it would show 2.5 briefly, and then change to 3.5 every time. But I could change it back and get 2.21 or 2.78 every time.
The car seems to be running a good bit better now. It will accelerate at a close to normal rate, all the way to about 5000rpm. It does break up a little along the way, but nothing like before. Boost is noticeable, but not strong, and is limited to 6-7 lb-ish.
I cleared the codes, and drove it. The ones that came back are 43 and 51.
43......Starter Signal ........Probably caused by the ignition bypass I ran with a push button start. My wire was weak, so I bypassed it with a switch. I still have to have the key turned to start the car. I learned this through a search, but code 43 was never mentioned in that thread.
51 No......... IDL signal or A/C Switch issue ...........I suspect poor wiring here. I had to tap into the igniter wire to get a signal for my tach on the NEO. I found my A/C compressor had no plug on it's wire today, and cut a connector off of an old bad compressor to fix it today.
I'm getting confident that a new wiring harness and professional tuning is about all I need to get this thing right. Harness is coming soon, just another $200 to save. I believe these codes are causing the ECU to pull timing.
I actually got screamed at yesterday, when a hard launch got me my first wheelspin ever in the neighborhood. From now on, my testing will have to be done outside of the neighborhood.
