anasyakoub

Hi,

I am having a problem with my car whenever I run the AC the engine tries to shut off two or three times then it dies off,

its not because of the intake shield and AC fans, I have pulled the two fans harness and still the same issue,

this happened when I tried to lower the injector ( FIC 1100 ) scaling from 1008 to 975 as I'm seeing both trims are +5, +7 , and when I did ( changed the scaling ) the car wont stay on : idle very rough, white smoke came, and it dies after seconds,
then I have returned it back to 1008 , idle still rough , engine wont die, but I can not run the AC

any one had such thing before ?

darkeye

Hi,

What latency did you set for your FIC1100?

My settings for FIC1100 (98Oct):

Fuel Injector scaling - 975 cc/min

Latency Compensation:
4.69V - 3.69
7.04V - 3.045
9.38V - 1.8
11.73V - 1.215
14.08V - 0.915
16.42V - 0.72
18.77V - 0.645

I have just one issue with it.
The idle RPM falls down for 1 or 2 seconds to 600rpm if i stay longer at Idle, then
somtimes i get "random Cylinder missfire".

But only with 98Oct... no problem with E85.

JohnBradley

iTrader: (30)

You need to tune or have your tuner adjust the idle timing compensation tables to help correct for the camshafts lack of vacuum.

anasyakoub

I have solved it using the method in this thread
http://www.evoxforums.com/forums/showthread.php?t=70356

thanks all for your help