check engine light with enthalpy?

[Lantz]

I'm planning on running a mild turbo setup on my DE soon. I currently have 5 check engine codes. All of the important ones should be fixed when i install all my turbo parts (ex. cant put in new O2 yet cause some moron welded it in the bung ruining the sensor and the hole for it).I'm pretty set on running an enthalpy ecu for this project and i was wondering if check engine codes would effect how the enthalpy ecu works like it does on a stock ecu.Despite the codes my engine seems to run fine except i belive my timming is retarded by the bad knock sensor and O2 sensor so it hesitates at high rpms and is slightly slower than it should be. It did pass a compresson test, testing straight 180's.btw my check engine codes are:2nd O2 sensorengine knock sensor (attempting the 460k resistor route)crankshaft possition sensor (i think its the useless one in the bellhousing)idle airflow sensor (i think) and i cant remember the 5th one right now. also my car is a '96please let me know if these could effect my new ecu or any other problems i might be overlooking with this. thanks

[Jookmasta]

do realize that u should get those codes fixed/eliminated before even thinking about boosting. ur engine doesnt need to be in pristine order to boost, but u sure shouldnt be throwing codes while in boost or at all. the ecu will be affected by these codes (namely the knock sensor and 2nd O2 sensor codes) as one will mess with the timing and the other will mess with the a/f. both of those things are very very very important while in boost as you may not make as much power and or u could get some detonation (if running too lean or too advanced of timing). i assume u know this though.

nonetheless, please get those codes fixed before throwing in the enthalpy ecu.