I have a 2006 lancer with a road race motorsports turbo kit on it. I brought it to my gfs dads garage the other day because it was running really rough and the code came up as the front 02 sensor. I called tapp auto in Ottawa about it and they told me it was the sensor for the wb gauage so i ordered it and when i put it in the car is still running rough and running rich. I had also noticed my turbo manifold was cracked so i got them to fix that as well. Its still running the same and the air/fuel ratio at idle is 10 flat does anybody have any ideas to what it is. I was thinking a boost leak or something along that line

 

What kind of turbo kit you have? Pics?

What fuel management system are you running?

 

if thats a rrm kit with a piggyback, then definitely reset your ecu. My fuel trims get ****kkked after like 1 month of driving the car. Runs like ****. Then if i reset the ecu and do the learning process car runs good.

 

hmmm, yeah definately reset the piggyback...and at least it's not lean, lol

 

It's not the piggyback sure the trims get whacked out but at idle the ECU should still keep it at 14.6-15.0 it should never cause the car to be exteremely out of norm.

I had this happen to my car was driving fine then all of a sudden 10.0 under any acceleration to the point it would die out (RRM's Filter has a metal disc that fell out cheap filter cheap on glue ). Anyway It's most likely a massive boost leak of some kind make a tester or search by eye if it's this big shouldn't be hard.

Too rich can damage the car after time so I hope you are not driving it like this.

 

an exhaust leak would normally give you lean readings, boost leaks as Adam stated could cause it to run rich...