Bad MAF?

[Raquon]

I usually can find my answers without asking but i need a second opinion.
Last night a friend of mine was making an effort to be nice and wash the ol' legacy.
He ended up power washing the engine bay and it ran a bit funky today.

For starters at idle it sounds like i have cams and the idle is jumpy under 1k rpm upon startup. The jumpy idle reminded me of a dirty IACV.

I did some poking around and pulled a spark plug boot and low and behold the boot was wet and so was the plug. Cleaned that up started it and it seemed to smooth out at idle. Then i go to drive and she sputters like crazy at low rpm.Feels like it wants to fall flat on its face. Up to normal driving speeds its fine. Feeling like its ok again i boosted down a on ramp and about 5500 rpm she stopped like i hit fuel cut. I am aware that this engine has a higher redline than that.

CHECK ENGINE light isn't on

My car is a 91 sport
stock vf11
3'' turbo back
nothing out of the ordinary

I do not have an O2 sensor, i never have had one and never had an issue like this.

I am wondering if its the MAf or something else i over looked
i have a metal housed MAF

[cj91legss]

I would pull the charge pipe and see if there is water drops in it.

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[James614]

With a stock air box nothing should have got in the MAF. Never the less, you can pull it off, spray it down with MAF cleaner, let it dry for a good while, and replace it just for posterity's sake.

Did you check all the other spark plug boots? They are kind of notorious for catching water like that. Also check to see that the contacts on the boot or the plug aren't rusted/corroded at all.

Also, might be worth checking you vacuum lines over. Maybe something got pushed loose. I'd pay special attention to the MAP sensor and pressure exchange solenoid on the passenger side behind the airbox.

[rallyak]

Did you dry out all the spark plugs? It will run like crap and won't rev if water is still left in there.

[Raquon]

Whelp took everything apart, replaced every single vac line, spark plug and wires. I found that my mad sensor box did have a crack in it. She runs good now. I am putting my money on the circuit board on the maf being wet but I won't know since I went OCD and replaced a ton of stuff. It needed it anyway. Thanks for your input guys .


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