I'm looking at Page D52/D53 of the Workshop Manual and the process for setting the idle speed is VERY different from what I've read online. This is made more complicated by the fact that the pictures in the manual are from the older 3.0 and 8 models with a much different throttle body. According to the workshop manual "The idle speed will be adjusted by the throttle screws (B) (see fig. 41). The By-Pass screw is normally closed; use it only in case it is impossible to balance the vacuum with the throttle screw only." Ok so when I look at the picture - Image Unavailable, Please Login The "bypass" screw is in a different place from my car. Image Unavailable, Please Login But the parts are called the same thing on both diagrams. This would suggest the correct method to set idle is to close the bypass screw and adjust the other one. Does this mean I should be closing the bypass and adjusting the idle using the screw located at 18? This goes against everything else I've read - but this was taken right from the workshop manual!