Getting Started: LO3 Camaro

[TerryD]

Put about 120 miles on it last night. Starts great, runs good, BLMs are in line when driving.

Still rich at idle. 110ish on BLMs. And it hunts at idle in gear and park. There's an idle/spark correction PID I've heard about disabling to help with that. Might start emulating and try and tune it better or I might drop the PID completely for now.

I want gears and a TrueTrac but I also want headers and a better exhaust and cam swap and ya know, EVERYTHING....

 

[TerryD]

Spent yesterday and today getting cooked on the paper machine and it's too humid to think outside. Car will have to wait till I can be outside for 5 minutes and not sweat through my shirt....

 

[ktmoutfront]

3 shirt day today.

 

[TerryD]

3 shirt day today.

Same, but I only had two shirts with me so I kept one hanging in the shop to dry while I sweated through the other. I couldn't have been much wetter if I had been working in the rain.

 

[TerryD]

Tonight was not as miserable so tonight after dinner I played with the car a little.

First thing I did was turn the fuel pressure up to 13psi. My O2 voltage was in the 800 range at WOT and I was getting a good bit of spark retard so I was pretty sure it was leaner than I wanted.

Next I decided to try emulation. I cut the idle overspeed and underspeed spark tables in half and zeroed the idle multiplier tables and that stabilized the idle RPM issue I was having. Then I played with the idle speed a little and leaned out the 600x25 to 800x40 section of the idle VE table 5%. That brought my idle BLM right to 128 and seemed to improve idle quality some too.

It seemed to go ok till I started getting blips, CEL would flicker and the idle would jump to 1000. It eventually died and wouldn't restart. I fiddled with it and decided to swap back to my chip. It still wouldn't start. I unhooked the battery for a few minutes and it still wouldn't start.

I suddenly fired up and idled. I swapped back out to the Autoprom, it started, idled. Cool. I pulled it in gear to go play a little and the second I hit the gas pedal, it died and wouldn't even try to restart.

I swapped back to the chip, cycled the ignition 3-4 times and it fired up. Not wanting to get stuck on the road, I burned my changes to the chip and just drove on the chip instead of doing any more emulation this evening.

The car runs tremendously better with the 13psi. 5500RPM easy between 1-2. Much more responsive 3-2 downshift acceleration. I have a long log to review and see what I want to change next.