1992 Ranger 2.3L Running Lean?

Pete, first does your check engine light work? It should come on when you first turn the ignition on and go out shortly after startup. Sounds like a electronic mgnt problem check on the light functioning as leaness in a fuel injected vehicle is rare.

Hi Fred Thanks for the tip. Yep, the lite works good. In fact, it indicated a malfunctioning PVC valve about 6 months ago that I fixed. What gets me is that in cool weather it runs on startup and drive off ...just fine...no hesitation/stumbling. On a warm morning -or after sitting and cooling off a bit- it does the stumbling thing for a second or two. This has started in the last 3 months or so. Startup is great. Any more ideas will be appeciated . Thanks again. Pete

When was the last time you cleaned your injectors? Sometimes some residue will settle and dissolve within a minute or two and it won't be enough to show up on the 'puter. I'd give it a try and if all else fails, take it in for the scan.

Jim

Thanks Jim How do you clean 'em ...do you run something thru the engine or remove 'em ? Thanks again Pete in La

I'd try one of the better brands of injector cleaner in the fuel tank. Be sure and read the directions! More isn't necessarily better. Most bottles will treat up to 22 gallons so be sure to allow for a smaller tank. If that doesn't work - I'd take it and have it done.

Jim