Jeep has a high idle after changing the water pump?

[Troy]

So, my brother-in-law bought a POS Jeep Wrangler. I think it's a 97 and I'm pretty sure it's not a six cylinder. The water pump was leaking and his friend replaced it. Now it's idling around 2,000 and throwing a code for the MAP sensor. Last week when it originally started doing this I thought they told me it was a crank or cam sensor code so who really knows? Since I'm notorious for breaking unrelated stuff while I'm "fixing" my cars I'm thinking there's a wire that got pinched or disconnected or a vacuum hose that came undone. What can cause this and is there a simple test that I can explain to them in an email or on the phone? I am not there, I haven't looked at it, and I'm not going to touch it - but my sister asked for help and I'd like it if she stopped bugging me. It broke well over a week ago but, of course, *NOW* it's an emergency since he can't make it to work (currently a construction job 120 miles away).

Troy

[Plumcrazy]

Here probably knocked a vacuum hose off  creating a vacuum leak which would explain the high idle.

The MAP code is probably "no change in vacuum from start to run" or something very similiar.

[Troy]

I passed on the message but, according to them, they've checked all the hoses and used some carb cleaner to spray around any suspected leaks.

Troy

[Plumcrazy]

I passed on the message but, according to them, they've checked all the hoses and used some carb cleaner to spray around any suspected leaks.

Troy

Ask them for the P code number.

[Cooter]

Might be running in open loop due to the coolant temp sensor being RIGHT AT the water neck for the thermostat...Computer prolly thinks it's -30 degrees or something..

Ain't it funny how things become an "Emergency" until you CHARGE for the repairs?

[Troy]

Thanks, I will see what they respond with.

Troy

[Troy]

Ok, apparently it was the intake manifold gasket. It's all better now. Thanks for the advice.

Troy