I've got a 98 with intake, headers and full exhaust (no cat). I get a check engine light and ECU spits an error code after about 150 miles giving an 02 sensor problem. I've heard this is from not having a cat and the ecu retards any aftermarket parts when it realizes something is not right. What can be done to get rid of this problem and keep the ecu utilzing all the aftermarket parts I have installed. I've heard you can install a switch to the ecu power so you can reset it after every 100 miles or so or just pull the clock/radio fuse (which is what I have been doing). I do notice a power difference when the check engine light is on. Any suggestions for ECU upgrades and what kind of price am I looking at?