I ran through a puddle that was pretty deep and it stalled the car. After 10 minutes it was finally able to start. But after a few days it started not being able to hold an idle. When it would idle it would be just above or right at 500. But whenever I put it in neutral it will go straight down and stall. I replaced the MAP and MAF sensors, cleaned the r and r egr valve. I have no idea what else it could be. Any thoughts?
Also when it is about to stall I can rev it to 4k rpms and it will idle just fine. Any help would be appreciated. Thanks

 

how deep was the puddle, and do you have a cold air intake?

 

about 2 1/2 ft deep. Short ram intake

 

isn't 2 1/2 feet pretty close to your windows? and where on god's earth did you find a puddle that deep? and then decide to drive a car through it.

did it throw a code?

 

There is a place in the road here on very high tides that is can get that deep. And I was kinda reatrded and thought hey I can make it... buuuuuut I couldn't. And it brought up a good bit of codes.

 

PO102MAF signal low, PO113 IAT signal high, PO403 EGR Circuit Fault, PO106, PO131 02 signal low bank 1 sensor, PO13402 no act., PO171 fuel too lean bank 1

These are the codes that came up.
unfortunately not sure what all this means so if anyone else does please let me know!!! Thanks

 

2 1/2 feet? I'm already thinking you shorted something out and broke some sensors.

I'm surprised you didn't hydrolock

 

Yea same here. I was surprised it even started up. But since it did I thought maybe it survived and I got lucky but I replaced the MAP and MAF sensors and cleaner the EGR valve and throttle body which helped a little but what do you think should be the next replacement? They said an EGR valve was 600 bucks? Seems a bit high?

 

im thinking your o2 sensors now

 

Did you clear the old codes so you could see which new codes pop up next?

 

yea it was the pre 02 sensor showing fuel is too lean?