MAF calibration vs. IAT temps

[erick_e]

Use the IAT vs. injector flow rate multiple out of a ZR1 tune and see if it helps.

I'll try to look at the tune later

Also, post a log if you can

Where is the IAT sensor at on the e-force systems?

Will try to get a log soon, but had to deal with a damn leaking tire. I'm guessing that it woan't be as warm by the time I get around to getting a log. Just noticed today that with IAT's around 70-80 degrees that the fuel trims are around -7 and -8.

The IAT sensor on the E-force if located on the passenger side rear of the supercharger near the firewall.

[realcanuk]

On page 7 below there is some good info on adjusting flow rate vs IAT... I have followed this before with good results.

http://download.efilive.com/Tutorial...20Tutorial.pdf

[schpenxel]

Good explanation

[erick_e]

On page 7 below there is some good info on adjusting flow rate vs IAT... I have followed this before with good results.

http://download.efilive.com/Tutorial...20Tutorial.pdf

Thank you...

"we want to richen up the mixture as IAT rises, so we tell the ECM that the injectors flow “LESS”. The ECM then commands more fuel to compensate for the lower flow rate."

This explains my situation exactly. Hopefully, I can get around to getting my WB hooked up and getting some logs.

[eficalibrator]

Have you dialed in the Dyn_air (speed density) air model? You might find a significant change in behavior after this is fixed...