Quote Originally Posted by WytWun View Post
How are you determining the revs? The graticule markings on the tacho are in 200rpm increments, even the 2 below 1000rpm.

When accurately measured with the A/C off, the idle should be 700rpm in neutral and 625rpm in gear at normal operating temps.



As far as I'm aware all H, J, L and W series 3.5s use the same MAF - just make sure it has the same number (338) on the top plate as yours.
Ah, I was just going off the tacho in the car. For some reason I thought the marks under 1k were 750 & 500, so it's reading a hair over the 600 line in gear at lights, which puts it on task, so i guess low RPM probably isn't the issue.

I'll probably grab a MAF sensor if I can find a second hand one at a reasonable price.