Idles right cold but throws a check engine light warm and surges at idle warm???

[blacksambo]

Well. I got the codes. You are right, 171 and 174. I heard some sucking/hissing and there was a vacuum hose amiss. That fixed some of it. Then I could still hear vacuum leaking around the driver's side plenum, just on the seam where it meets the throttle body. Gasket sealer did not stop it, nor did torqing it down more. So, I guess I'm stuck removing the plenum and puting on a new gasket. Right??? Is that tricky or a straight forward job? Thanks.

[WormGod]

Its not tricky and its straight forward, but a pain in the arse, IMO, haha. The only thing that might be a hassle is the fuel rail. It will either be with you or against you. Tends to be different for everyone. You may just be able to lift the manifold high enough to replace the gaskets without rail removal though. Unsure, I never tried.

After all the new parts, cleaning, and rebuilds I did in my VX, I am still left with a 174, which I can not for the life of me solve. Managed to get the 171 to go away for good. My starting idle is still somewhat boggy for about a minute but then it's solid and healthy. My hunt for the 174 continues, heh.

[blacksambo]

Thanks for the wisdom, it's a big help.