so i drove to work today in the rain, and i went through like a 2" maybe 3" puddle, unable to avoid it. when i parked the car it idled kinda rough. didnt think anything of it. on my way home however it would run really rough when i was just cruising along and then threw a misfire code, havent been able to scan it yet cuz its in my brothers car, but are there any ideas here? im really hoping i didnt **** my opti up

 

Maf's probably wet. Check it

 

how would i know if it got wet (sorry for sounding dumb)

 

Sucked water up through the CAI.

 

hm i would think that might be a possibility but the puddle was on the right side of the car not so much where the cai would be...idk ill check though

 

im pretty sure it was wet...thanks!

 

yep thats what happens when you suck water through the maf. Got to becareful with a cai and driving in the rain!

 

Not a problem bro

 

well...i just scanned the codes...here they are...PO133- o2 sensor ckt slow response, PO141 o2 sensor heater circuit malfunction, PO300- misfiring...would these all be results of the maf being wet? possibly because i havent had the o2 sensors shut off since i put my ory in (although this is the first time its happened and ive had the ory on for over a month) or something else?

 

anyone?

 

nothing?

 

Scanned the codes again...now its just random misfiring...let the car idle and it threw the code just at idle...any other ideas as I'm beginning to think the maf being wet is out of the question

 

Maybe the opti got wet as well?

 

I hope not...is there anyway to test for that

 

I'd be willing to bet with 90% certainty that is the cause of the rough idle. But I don't know what year car you have, to tell if it's a vented opti. The codes could be due to the wet opti and you're just not burning all the gas, creating rich exhaust. Alternatively it could be that with the O2, the cooler water shocked it, and killed it.

 

its a 96 with an msd opti...just ran the codes again...only a cylinder 4 misfire now

 

also, i dont know if this has any effect on the code, but i have an ory with the o2s and egr/air still tuned in, i havent tuned them out yet

 

even if on a vented opti though it would still idle rough and vented optis dont always recover, the vent just helps it recover if its going to....

its the opti most likely...good luck they are fun

 

most likely ill have to replace it? no way to recover the one that i have in there now?

 

I would give it a few days and see if it gets better. Then start lookin at replacing parts. Im sure if water got in the opti its going to take a bit to dry out. Maybe try getting a hair dryer on it LOL.