My wrx check engine light on and off, the first time the light on, i took it to dealer they said it was bad wire of purge valve sensor.

after few days, check engine light on again
and i took it to dealer agains this time they replace the purge sensor. But after a week, check engine on agains!!!

Now, f-u-c-k up! plz help

I think it happened after i installed hks tt!!


Mod i have on my wrx
Intake exhuast hks bov and hks type 1 tt


Poissible reasoni think)

Bad wire
ECU
Bad sensor (bad luck are bad)
speed sensor?? (i don't know)
bad vaccum????

Well i check the connector of the sensor it read 13.6 volt.

 

well i doubt the TT had much to do with it if you disconnected the battery and had the harness, i mean its just plug and play

 

My is hks type 1 which has rpm and speed and i did hook it to ecu speed sensor and rpm sensor. i am, going to check any lose wire tonight i hope i get luck

 

My ecu radomly came on it was a misfire 301