Wet engine full throttle

[SkidPalace]

Well I kind of porked myself today. I figured I would wash the salt and grime off the rig today and gave the engine compartment a douche with the pressure washer as well.
Now when I start the engine it goes immediately to full throttle until I cut the engine.
Any idea where to start drying things?
It's going to dip back below freezing in an hour or so.
How screwed am I?

 

[SkidPalace]

Also, when I push the ignition button twice I hear a fairly loud buzzing noise coming from somewhere near the intake manifold. I can’t really pinpoint it more than that. Seems to be coming from the manifold itself (with the engine cover removed of course)
This is going to be an expensive mistake.

 

[Orc]

The engine goes full throttle as in rev limiter? Any idiot lights pop up?

Did you drive it after all this?

Sounds like the ECU was damaged.

 

[WAT4R]

Could be water in the Throttle position sensor or Mass air flow sensor. I'd dry the connections first with compressed dry air.

 

[SkidPalace]

Guys you are going to laugh your asses off, but I had my gas pedal stuck under my husky liner.
However, I think I caused a few more problems.
Before I realized the pedal issue, I had traced the buzzing to the throttle body or possibly the TPS. So, while the ignition was on, I unplugged what I assume to be the TPS and, what do you know, the buzzing stopped. So I go to start the truck and boom, I get the truck to idle. However, I noticed the the truck was running rough. It felt like it was missing. The exhaust sounded like a little four banger.
So I go to give it a couple of revs and notice the the pedal felt a little weird. I also noticed that there was a check engine light. Great. That’s when I realized the floor mat was on top of the gas pedal. WTF.
So here I am with my truck idling with the gas pedal almost to the floor.
Unplugging the TPS must have remapped the throttle position with the pedal in the wrong position. Ugh.
What I did was turn off the truck, fix the damn mat, unplug the TPS, start the truck. Hey what do you know, it idles nice and smooth and sounds normal at the tailpipe. Ok, shut the truck off, reconnect the TPS. Start ‘er up. Still sounds and feels normal. So far so good.
I plug in my code reader and I have P0121, P0123 and N/A (?).
I didn’t even bother to check the codes, as I assume they are TPS errors.
I just cleared the codes and hope they will stay off.

Sorry for the long story, but I am relieved I didn’t do any serious damage to the electronics. At least I think I didn’t.

 

[2016 4Runner SR5]

For one, never pressure wash your engine lol. What I would start with is plug everything back in that you messed with and disconnect your battery for an hour. That'll clear any CEL codes and will likely get you back in business. If not, you call the dealer and have them send a tow truck. DO NOT mention what you did either lol just play stupid.

 

[4FL]

That was a roller coaster story, lol.

 

[tristero]

Guys you are going to laugh your asses off, but I had my gas pedal stuck under my husky liner.

If it makes you feel any better, I've done this a handful of times. That being said I never thought it was a gremlin in my engine :crazy:

 

[Orc]

Those husky liners sound unsafe.

Carpet mats seem fragile but they arent at all. I get my vehicle interiors detailed, the carpet goes in looking destroyed with everything from kids vomit stains to grease and they look new after.

 

[Bayou_Pro]

Never pressure wash your engine please!!! All of the connections are waterproof but not rated for 2000+ psi. I give it a good soaking with simple green and then wash it down with the house with just a little thumb pressure.

That being said you should be good to go if it's running fine. You can clear the codes or they will go off by themselves in a few days and key cycles.


Sent from my iPhone using Tapatalk

 

[Lostmanifesto]

Drive the rig into a giant bowl of rice. Waiting until morning. Should be good to go!

JK

The ECU is damaged. It may dry out, may not depending on how bad. Good luck!

 

[SkidPalace]

Those husky liners sound unsafe.

Carpet mats seem fragile but they arent at all. I get my vehicle interiors detailed, the carpet goes in looking destroyed with everything from kids vomit stains to grease and they look new after.

They are not unsafe, you just can't be braindead when you put them back in.