wassup guys...i recently took my car to the dealer to get it looked at because my CEL
was on, they looked at it, and said it was the PO300 random misfire code, so they reflashed my ecu. i take it to my friend who owns a shop, he looks at it, and determines it's my mass air flow cuz he put a wrench on top of it, and my car almost stalled out...according to mitsu, that's normal and all cars do that. i'm not to sure, about that...but my car is idling really rough, does anybody have any advice for me?

 

quick update guys, which you probably dont care, but i took it in to mitsu, and they told me it's the fuel injectors, and they are gona order them and install them under warranty...but i still think it's my mass airflow sensor, and i dont believe mitsu even looked at my MAS, they stated that any car in their lot will stall out if the MAS was tapped, i dont believe it so i'm wondering if anyone knows if that's true or not?

 

that sounds kind of odd to me..............I have had the same problem but the only thing aftermarket I am running is an exedy hyper carbon clutch. I got the cel the day after my clutch was installed and my dealers senior evo tech said that it was from a sensor (believe it was the crank angle sensor) behaving to sensitive and sensing harmonic vibrations coming from the tranny and causing it to think there is knock and thus sending more fuel to the injectors causing a rich misfire, which is rare. I have had my computer reflashed and sinse then I have not had the SES light come back on. What kind of mods are you running? again ....this flash is strictly for "STOCK" emmisions and will not work if your running anything aftermartket relating to emmisions.

 

If you are running aftermartket emmisions related products, The only flash I've heard that will cure you of your problem 100% is the WORKS flash. they have succesfully laced the new updated flash of mitsu with their P2 flash and your aftermarket products will and should run in complete harmony.