another rough idle problem

[Y33TREKker]

Having only replaced the fuel pressure regulator out of the three repairs you've listed, I may be wrong about this, but I'd be of the opinion that the difficulty ratings of those three would be ranked as TPS (easiest), FPR (medium), Intake manifold gaskets (hardest).

Then again, I don't know if there's any sort of calibration needed as part of a TPS installation, so it may be FPR (easiest), TPS (medium), and Intake manifold gaskets (hardest).

Unless you already planned to do all three replacements anyway, I'm always a fan of trying easiest to hardest with the hopes that one of the easier replacements will solve the issue.

[evillecutter]

Having only replaced the fuel pressure regulator out of the three repairs you've listed, I may be wrong about this, but I'd be of the opinion that the difficulty ratings of those three would be ranked as TPS (easiest), FPR (medium), Intake manifold gaskets (hardest).

Then again, I don't know if there's any sort of calibration needed as part of a TPS installation, so it may be FPR (easiest), TPS (medium), and Intake manifold gaskets (hardest).

Unless you already planned to do all three replacements anyway, I'm always a fan of trying easiest to hardest with the hopes that one of the easier replacements will solve the issue.

might sound stupid but where/what is the throttle position sensor? i thought the fuel pressure regulator was pretty easy

[Y33TREKker]

might sound stupid but where/what is the throttle position sensor? i thought the fuel pressure regulator was pretty easy

It's on the side of the throttle body, and only held on by two bolts. I took a quick look and it seems the only adjustment that even might need to be made during installation would be to the accelerator cable, so I'll rank it back at easiest of the three replacements (if only in effort and not necessarily impact on the wallet anyway)

"Throttle Position" (TP) sensor - Chapter 6 in the downloadable VX repair manual.