02 Sensor is brand new. I just got done this weekend replacing the lifters and pushrods and also the fuel pressure regulator. I tested the compression and I'm getting 165 to 178 on all pistons. none of them were the same exp the ones next too each other. i got timing set at 10TDC and the base curb idle set at 600 RPM the tps voltage is set @.904 volts said optimal was too set @ .84 but it seems to idle better at .9 I still get the code 41 continuous code the check engine lights goes off when i restart the car