Hello,

I've been having some idle/stalling problems. Cleaned out IACV, and car drives fine when it's cruising, but once I come to a stop, there are times when idle drops to 4-500 and car seems like it will stall out. Worse when I turn the steering wheel while car is barely moving (going in and out of parking lot), or when I press and release the clutch constantly while giving it gas (like when I'm trying to park on a hill). It's never stalled out, until today. Did it twice, and car was able to start up fine and drive fine afterwards. I've read that a bad MAF or MAP sensor may cause the rough idle and stalling, and was wondering if anyone else on here has had similar issues or know a solution. I havent tried putting new sensors yet, figured I'd try to find some answers before buying.

Thank you!

 

Hello @Noah Park

Which Mitsu is this?

Thanks / Cheers, Joe

 

2003 Evo 8!

 

Is your DV/BOV recirculating?

What other modifications have been done to the car? If any.

 

I just have the oem bov, from previous owner

Other modifications are:
Arp studs
Injector dynamic 1250cc injectors
Walbro 255 fuel pump
Exedy clutch disc and flywheel with act pressure plate/monoloc
Real street oil pump
Zerotick lifters
Stm balancer shaft eliminator kit
Stm oil cooler
Stm water pump
Mishimoto front mount intercooler and pipes
Egr delete
Oem bov
Aem boost/afr/volt gauge
K&n intake
Radium high flow 6 micron in line fuel filter

 

I'd suggest you perform a boost leak test.

 

ive had this issue before...
assuming you have no boost leak... then usually tune.