Are you getting any lights or codes? The remaining things to check could be the camshaft position sensor or crank position sensor. The cam sensor can be on it's way out for quite awhile before it dies completely so you might start there. I'm not sure if there's a test procedure for it or not. You'd have to check the Bentley manual. BTW, the sensor in the airbox is not the coolant temp sensor. That's the intake air temp sensor. The coolant temp sensor is on the side of the head underneath the intake manifold. |