I have searched...

Basically everything that has came up has been for built motors or for turbo applications.

Little backround:

Recently drank some water...car sputtered and i flipped it off. Pulled the spark plugs and turned the engine over...it was a cool effect. Took apart the intake all the way to the block (HUGE PITA) vacuumed out the water with a shop vac and a speed bleeder.
Turned the car over (with the plugs removed still) made sure there wasn't even a mist.

Car started (of course with the wonderful ticking of bent internals). Ran it for about 3 minutes to get the residual water out of the system. White smoke stopped after 3 minutes. Let the car cool. Checked the Oil and water, just to make sure I hadn't blown the head gasket.

Drove it around the block, noticeable loss of power. Check engine light came on. P2195 popped. Failed O2 sensor. Removed and replaced with a new one (somebody had done a number to the one that was already in there was a REAL PITA to get out)

Car ran great again. Power was back no more odd idling issues.

Two days later P0300 (random misfire) pops. Check the plugs to make sure they aren't fouled. (tanish color). Normal to me....replaced anyway. Checked to make sure the coil packs were all the way on the plus and tightened down.
Disconnected the battery for 5 minutes plugged it back in. No pending codes or anything the next morning. Today...started the car got it again.

Motor is FULLY stock still and injector cleaner ran through with the last tank of gas. No noticeable change in my normal fuel range. Any more ideas?

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you should of also change the oil once that car got some water in it.. even though you may have sucked out most of the water, there may have been some that got mixed with the oil..its best to change the oil ASAP to avoid any further problems..

also clean the MAF sensor with CRC Mass Air Flow Sensor Cleaner.

 

Oil was changed forgot to mention that lol. It was done the day I got the car running again.

MAF sensor should be the one on the intake tubing correct? Right behind the box?

 

yep thats the one..



or here if your's an 07+

 

No joy. Still throws the code. Rough idle and ~1500 rpms. Any other suggestions?

Air filter was replaced today as well. (has nothing to do with the misfire...but smelled like really moldy)

 

have you done a compression test?
does it give you a misfire in a specific cylinder or just a 0300?

 

Done all the suggestions that I received in PM as well as through the thread. Everything really checked out ok.

Except the spark plug. Swapped 1 and 4....ran the car, low nad behold it went to cylinder #4....so there it was, a faulty spark plug....didnt make sense to me but it was replaced and works out fine.

 

Have u done a compression test ?

 

Nah car went boom! And selling everything now.