Ran my check engines and this is what popped up:

P0037 - powertrain - HO2S heater control circuit
P0401 - powertrain - exhaust gas recirculation flow insufficient detected
P0325 - powertrain - knock sensor circuit 1



Please define...thanks

 

Bump

 

Help

 

1st code- secondary (downstream, in exhaust, not housing off turbo) O2 sensor heating element went out, won't heat up correctly. Tested over several cycles. 02 sensor is probably bad.
2nd code- the exhaust gas recirc system has a leak somewhere or the diaphram on the EGR valve itself is stuck shut (or blocked off, or ect)
3rd code- engine has detected pre-ignition from low octane fuel, inappropriate mixture, or a variety of other reasons (overboost, not tuned for mods... ect.)

 

also, searching each of those codes in google will yeild plenty of results:

http://lmgtfy.com/?q=lancer+evolutio...ontrol+circuit

 

Alight thanks alot, preciate it