i just installed a Cobb uppipe on my 07 wrx, and i got these weird gaskets from remflex and they say if you crush them to over 50% of its size its useless. my friends helped me install it and they crushed it as thin as the stock gasket. now i think i have a leak from where the uppipe and the turbo meets. i dont have full boost but it still drives ok. i drove it from san francisco to san jose with no problem. today i went to the dealership to pick up new gaskets and on my way back i got a CEL and my cruise light is flashing. does anyone know what this means?

 

Front o2 sensor ok ?

 

alright, downsti was nice enough to meet me up and use his obd reader. turns out i have a p0137 code. the reader said bank 1, low volts. i did some research and found out that p0137 is for the rear o2 sensor. which confuses me cause i didnt even mess with that at all. i only touched the o2 sensor in the front, the one on the exhaust manifold.

 

te rear o2 sensor is after your gasket problem, if you havea leak it will read it, it wont reada leak before the problem.pressure is lost at the turbo, so the reading you get is after the problem. i hope i read this right, and i am making sense here.

 

yeah, the problem was already taken care of.