Also, if you are used to driving it in hot weather and have an MBC, I think when it cools down (specially when it rains), the car does not make 19.5 psi peak.

 

Drove the EVO to work today, and it seemed fine. I don't think that I need to reset the ECU this time.

If I'm correct, the air flow design on the WRC car is different than the stock EVO. I know many of the manufacturers in the WRC use a different design in the front bumper and the hood to effect the flow of air, due to the fact they are only allowed so much squared area for ventilation.

Even if small amounts of water were to get into the filter, the turbo would vaporize it. My thought is that the vaporized water is bocoming re-condensed in the upper I/C piping.

This is all just speculation, mind you.

 

I'd like to disagree with that. For where I'm located anyway. I'm in Colorado, so the dry air mixed with the lack of density in the atmosphere make it hard to produce decent power and numbers. In the summer, when it's hot and dry, cool rain will help the performance. The cool rain brings the temperature down, and adds much needed moisture to the air, making the air more dense.

Again, this is just for the area that I live in, don't mean to bash your thoughts.

 

Damn, I cant believe I ran into this post.

I was driving home from WV on Monday in the pouring rain. I down shifted into forth and mashed it. At about 5000 RPM it felt like the car was running outta gas, would hardly rev. It was the first time the car had done anything like this in about 7k miles. I had remembered reading something about it in this thread, so I pulled over and check inside the air box, around the MAS and it was dry as a bone.I have no idea what could be causing this.I hope someone figures it out, it rains alot around here.
BTW I have had the re-sealing work done.

 

Just to chime in, I've had nearly the same exact thing happen to me once or twice (driving in the rain, downshift to fourth, motor stopped pulling at about 5K, felt like hitting a rev limiter) My last car would run rough when it was moist out due to really old plug wires; I'm assuming that this is not an issue with our shiny new evos...

I haven't had the recall service done yet, though.

 

The only way to get things done is register a complaint with the National Highway traffic safety administration which is what I did.

http://www.nhtsa.dot.gov/

http://www-odi.nhtsa.dot.gov/ivoq/

FILE A COMPLAINT if they get enough, they might look into the problem, and force Mitsubishi to do something. Also tell your dealer.

My dealer would not do the outlander recall to my car, because they say its not affected. I called Mitsu, checked the federal site, and I still haven't seen documented proof that evo's are covered under the outlander recall and had my VIN checked to be safe. But there are too many guys here who have hade their evos recalled so I cant figure it out.

Apparently it has happened to recalled cars anyway, so no one is safe.

Good luck, and write back after you FILE A COMPLAINT

Thanks

L8r

 

how can you reset the ECU? I dont think this is my problem, my car doesnt see water that often except for a wash and a rain here and there....but my car falls on its face in any gear after 5krpm.

 

93 Civ If your car is stock does it all the time, take it to a dealer and let them figure it out!!!!


Because it is a random event for the rest of us, we cant duplicate the problem for the dealer, so they cant chase the gremlin.

If your car stumbles on a regular basis, and they Identify the problem, maybe that will help the rest of us....

Good luck and get it to a dealer.

Thanks

 

I took my car to the dealer saturday to get the recall work done. They call back 3 hours later, tell me it's done and I can pick it up. I ask the service manager if the car was leaking, and he said no. All seals were good, and there were no signs of water anywhere inside the car or at ecu harness. So, I tell him what happened to the car last weekend. His educated guess was:
"Because the road was wet and the air going into the airbox was full of mist, that the actual amount of air being registered by the mass airflow sensor was not sufficient for the amount of fuel requested at the WOT pedal position. Therefore the ecu retarded ignition making it feel like the car was cutting out." He said that since everything is fine now, that if I can get it to happen again next time it rains and I can get to the dealer, they will hook it up to test equipment and take it for a spin. That's the best he could come up with.
What do you all think? Sound reasonable?

 

That information is incorrect. Although I'm not the original poster you replied to, I thought I'd post to eliminate any confusion this may have caused.

Cold temperatures generally create dense air; rain DOES NOT. When it rains, the dew point and temperature are equal, and often there is 100% humidity. As many a dragstrip racing guy will tell you, it is a LOT harder to generate good mph (or a good ET) when it is very humid. Humidity has a more negative effect on performance than temperature- to some extent.

While weather conditions (humidity and temperature) also effect MBCs, that is a different topic entirely.

That said, I've never had any issues in the rain- although I don't typically go WOT when it is wet on the street.

 

Well, for a fact, after a Drive in the rain, I took off my upper IC pipe and it had a decent amount of water in it, just the fact of the situation. Now OF COURSE you lose power when it rains, a boosted vehicle is VERY dependent upon certain factors, such as the amount of 02 in the air and how well it can cool. SO when it rains, humidity is 100%, meaning there is that much less 02 in the water, so you make less HP.

 

I brought my Evo in for the recall deal and picked up my car 3 hrs later. The service advisor was an idiot, I asked him if they did anything to my car. He gave me the run around. If it wasn't the EVo i wouldn't buy a mitsubishi product in the first place. Anyway, This is my first mitsubishi car and my last one too.
JP IMPORTZ

 

You saw the water post intake installation, correct? I pulled my UIC pipe on a night after it poured all day, and it was dry as a bone. I still have the stock airbox, so maybe that's the difference?

 

bump to see whatever came of this

 

Mine had water, 100% stock at the time.