Scangauge update

I played with my new toy on the way to work this morning.

Horsepower, O2, and fuel trim all work. Torque, A/F ratio, the post-cat O2, and knock retard do not. I'll have to work on finding some alternative codes for those.

Fuel trim was all over the place. Short term fuel trim was anywhere from -5 to 5. Long term fuel trim was 12 at idle and as much as 20 on acceleration. I was surprised that LTFT varried as much as it did.

O2 was also all over the place, anywere from 8 to 70. Not quite sure what that means, or even what the units are!

Fun with the Scangauge

I successfully added short term fuel trim, long term fuel trim, and lambda from the O2 sensor to the Scangauge.

I also added the second O2 sensor (after the cat), horsepower, torque, and air fuel ratio, but I didn't get to test them to see if they work.

Long term fuel trim is 12, whatever that means. Short term fuel trim was 0 or 1.

Could it be that 12 means 12%, and the injectors are 12% over their normal duty? Makes sense to me. That would be about right for 30% ethanol.