Hi Guys i have Mehran EFI 2012 with after market AC installed. I'm facing low RPM issue in it when i turned on AC, I check with OBD scanner and the values are as follows.
Engine RPM when start = 1200 RPM
Engine RPM on idle without AC when car temperature is 80 C= 900 RPM
Engine RPM on idle when turned on AC = 800-850 RPM
Error code = MAF sensor malfunction
IAC actuator position before radiator fan on = 20%- 25%
IAC actuator position after radiator fan on and of = 11%- 15%
OBD scanner are not showing data of air conditioner i think ac wiring needs to be done with ECM.
Experts member please guide me on this issue.
Also i'm facing bad fuel average its around 10-11 KM/L with 60% AC on and driving with light foot.
TP sensor volts, long and short fuel trim everything has perfect values.
