hey guys,
need some input. my car will not stay idle. the idle gets very rough and stalls out. i am running pig rich at idle at times (10.5afr) and other times its at a nice (14.5-15.0). i keep throwing a code, system too rich at bank1. could my maf sensor have died? i also checked all my intercooler pipes and vaccums likes and there all secured. im gonna boost leak the car tomorrow too.
the car feels like how it would run if an intercooler pipe blew off or my maf was'nt plugged in.

ps. i have a evo9 dv, so the car is not VTA. i do have cams and larger injectors, but the car was tuned on may15.

let me know what u think

thanks
Dan

 

problem solved. bad front o2 sensor

 

good find!

how did you narrow it down?

 

man my car is doing the exact same thing right now i was just gonna make a post haha ill have to check my o2 sensors!

 

i narrowed it down by the check engine linght. i threw a system too rich at bank 1. bank 1 is the front o2 sensor. figured id pull it out and check it.

 

good job!

 

sorry to bring this back from the dead im having this problem 2 but a good friend of mind hooked his snap-on computer device to my car and my 02 sensor was reading normal any advice

 

Turn the idle up with the BISS screw on top of the throttle body

 

mine was doing the same hting and all sensors were fine then i checked my maf wire and it was loose causing it to sometimes do the above issues

 

i switched from the stock 9 diverter BOV to my forge rs and no stalling