2 more little questions to add to this thread. i replaced the coolent temp. sensor, but occasionally, not all the time, the ECU throws the code for this sensor. this must mean a broken wire between the sensor and the ECU right? how would i go about following this? there's no way i'm cutting up the wiring harness...

also, doing the O2 sensor ECU test, it's supposed to flash ten times every minute or something... but if it stays off the whole time, this means that the sensor is bad right? or am i doing it wrong? i put it in regular diagnostics mode and then turned the car on if i remember correctly. whatever the write up said to do.

also, the pulsing continues... its not so bad in the warm weather, but it happens on start up and when i let it idle after driving for a while. if ANYONE has had the pulse problem, please help!