P0100 Error Code After Rain Storm

[BenHenthorn]

To make a long story short, I was driving around in the rain the whole day, and every passing semi and car completely soaked sprayed my car (100 gallons must have sprayed on my FMIC that day, water level high enough to get in my air filter maybe?), after a while it started to buck and sputter. After I refuel I get a check engine light, I check out the code with DSMLink and it said Code 0100 - Volume Air Flow Circuit Malfunction.

I make a log with DSMLink and I get no airflow readings at idle, but under acceleration I get normal airflow readings. As soon as I reach cruising speed on the gear it starts bucking and sputtering, and when it bucks and sputters I get no airflow readings again. I can clear the error and it doesn't come back the whole time I drive, but if I start it back up after being off; the check engine light comes back on.

Is there something wrong with my MAF or MAF translator? Could my FMIC have some water in it, and could the MAF have gotten damaged by water or something? It has never done this until the rain storm so it has to be water damage, right? Thank you for your help.

 

[BenHenthorn]

I found the problem when I opened my MAF translator and saw water pour out of it, also it had a solid red light. So I think this is my problem, but does the solid red light mean it's completely dead?

 

[BenHenthorn]

I just used a hairdryer to dry the MAFT and it worked.

 

[project94tsi]

glad we could help :laugh: good trouble shooting tho

 

[BenHenthorn]

:laugh: Couldn't have done it without you guys.

 

[karbon]

Same thing happened to me this morning. This thread really narrowed down the diagnosis, the translator got a little water in it. Silicone that sucker up!