Check engine, No Kar

[TSiWarrior]

I was ajusting the belt for the altenator, when I noticed my check engine light was on. Upon looking at my SAFC I noticed that there was 0 kar (airflow?). The car is running like hell, studdering...almost like it's misfireing. I pulled off the positive wire from the battery, car still ran. Wiseman please help fast!

 

[Lordpaxin]

check your Mas connectors? if a Zero Karmen reading, id say its in the sensor.
try a know good sensor from a friend.

without a signal the ecu will run in closed loop.

 

[psychlow]

without a signal the ecu will run in closed loop.

Which isn't good with the mods done to your car. There is no longer any type of compensation for your injectors. All the ECU has to go on is RPM, and it thinks you still have 450cc injectors.

 

[boostedinaz]

Also check the wires for the AFC. If they have comes lose, just the MAF wire, then you will get 0 for a Kar signal and the car will run bad.

 

[TSiWarrior]

Problem solved, wire got caught and chopped by shifter linkage.

 

[psychlow]

That's an easy fix. This time, run the harness through a wire conduit around the firewall.