Topic: New idle and missing prob...???? Help

[omnisi]

1999 2.5L, 60K miles

Changed plug wires, cap, and rotor last Friday and it ran perfectly.  Drove it at work 3-4 hours a night the last 4 nights with no probs....perfect.

Filled it with gas today then went home and and it sat for a few hours.  Started it again to warm up the oil before change yesterday and rpms shot up to 2K.  After a few minutes it dropped down to 1200-1500, and finally to hovered about 1200.  Drove it around 3-4 hours last night and idle wouldnt come down.  During the last hour or so, it started missing/sputtering, almost as if there was water in the fuel or something.

Still idling high and sputtering on acceleration.  Any idea what the prob may be?

Thanks

[neale_rs]

I think there was a recent thread on this.  Check/clean IAC motor, make sure the throttle flap is closing properly and look for detached/damaged vacuum lines. 

[omnisi]

When I changed the cap/rotor & wires, I also sprayed/cleaned out the TB very well with carb cleaner.  Throttle flap is closing, dont see any vacuum leaks...

Will a bad TPS cause high idle and sputtering during acceleration?

[lanulos89]

in the workbench section i have a 3 page long post "hic up"  about the same problem, i have yet to find the solution but if i do, i bet i cld be a millionaire.  i did complete tune up wires rotor plugs cap even coil,   i pretty much rulled out the ignition, now im up to eiuther the cps or fuel injectors.

[omnisi]

wow

I mean it was fine one minute, then the next start up it idled high.  No low idle prob, only idles high, and sputters during acceleration.

Last week I went wheeling where a lot of water was involved, but all of the tune up has been done after that, and there were no probs right after that.  Could I have gotten something wet when I cleaned it?  Quite a bit of water got on and around the dash area...??

[SKI BOY]

[[color=red]quote author=omnisi link=topic=2840.msg20743#msg20743 date=1173979712]
 I also sprayed/cleaned out the TB very well with carb cleaner. 
[/quote]

Check your IAC & TPS, you may have gotten gunk in them when you used the carb cleaner, just a thought!!

[jwrape]

mine sputters every now and then too.