So we got some pretty heavy rain here. My car is parked outside, and this morning I went to the car and started it up. I let it run and it seemed ok for a car that hadnt warmed up fully yet. I drove it out of my block and it was really sluggish. Limping around the neighborhood. I knew something wasn't right so I slowly made my way home. Parked, and as soon as I got there I threw a CEL light. Pulled the code with my AP and..

Cylinder 1 misfire detected (p0301)
Cylinder 2 misfire detected (p0302)
Cylinder 3 misfire detected (p0303)
Cylinder 4 misfire detected (p0304)
And
???????????

First time I've ever seen this. Help.

 

I recall that you run a short ram intake correct?

Probably got wet, and got some water in the intake. I would say let it dry really well and all should be okay.

 

Yea your maf sensor probably got wet.

 

yep, if u run CAI check ur MAF

 

I have the subaru SPT SRI (with the heat shield) and I got the same exact codes when I drove through a 2-foot deep puddle on the freeway during WOT.

Dry everything out and it should be fine.

 

Short ram. So the filter is in the engine bay, nothing close to the ground. That's for the responses. I'll just let the car dry out if this rain ever stops.

 

did you change your plugs and/or ignition coils?!

 

Lol not misfire but laggy off the line after some puddle killing.

 

Keep in mind that dew can form in your MAf housing due to the 100% humidity, rain, and cool weather outside.

 

Ugh, so I guess im out of a car til this rain stops. At least I leave tomorrow!

 

Some times the crack in the hood lines up with the filter.
Hope your good to go now

 

my car has been misfiring at about 5000 rpms under load, changed the sparks today and still getting the same result. changed out my short ram for the stock air bos and problem got even worse, misfiring at 3000 rpms under load, not sure....