BigT
03-25-2007, 02:40 AM
About two friday's ago, came out of work and went to warm up the car. Came back out 10 or so minutes later and its idle surging, hardcore. This is weird, car showed no signs of it before. Also, there is no CEL. DSMlink is telling me that the EGR system is running fine. But, it doesn't always surge. First starts off with a high idle, around 1700rpm. After the car is almost fulling warm, it surges. If it is completely up to operating temp, i can shut the car off to reset the ecu and start her back up and she's idling fine. Also, once in a while, it will just start to idle normal on its own then back to high idle/surging as soon as the car is turned off and then back on. I did a boost leak test, found nothing wrong, checked base timing, and checked the tps with dsmlink, and all looks well. One thing i noticed though, while the car is surging or idling high, the o2 looks as if its dead. It does not cycle one bit and is reading wayyy lean.... .0X volts. Once the car is acting normal or with some throttle applied, o2 voltage looks normal. Any clue what this can be?