The oxygen sensors are not used as Inputs to the ECU; until the coolant temp reaches operating temperature. So if she idling rough from the start then you can eliminate the O2 sensor as the culprit.
Well I did a bit of checking and with the diagnostic terminal points grounded my check engin...
No but a friend has one that I use. I know its not the timing well I'm almost certian its not the timing. It just past smog test and if its not within spec it fail right then even if the emmissions are within range. I was wondering if the 02 sensors were blown out if that would caus a rough...
I had a similar problem with my 88 4runner crusin down the freeway back off the gas to slow down and when I went to accelerate nothing no power no revs nothing. I could only get about 2500 rpms. It was like running on 2 cyl. Advancing the timing full tilt brought back the rpm's but would...
