As some of you may know, the northeast is getting completely slammed with rain right now, unfortunatly I had to drive my TA home today, I was on the highway for about 5 mins and, the road is pretty covered in rain, it starts stumbling around 2 grand for a few seconds, then clears up and goes, does this process until i get home. When im at a stop it idles fine, no surging. Im thinking my wires are arcing somewhere or theres something wrong with the coil, I really hope the opti isnt out already (3000 miles old). New Opti, fuel pump, FPR, Opti (GM), ICM, and Spark plugs, TPS, only things not replaced are the plug wires, MAP, and coil. Maybe I hit a puddle too hard?

 

A puddle claimed the life of my first opti.
Went pretty much the same way ... the next morning, she was backfiring like crazy.
That was also the day I learned that staring into the TB of a backfiring engine is a bad idea.

 

Water may be passing your MAF. Any codes? What kind of CAI do you have?

 

Moroso CAI and theres no codes, im going to scan it tommorow at my school, if theres a DTC16 code im gonna smash the crap out of that opti

 

Is the filter enclosed in the fender box or is it exposed?

 

Sounds like wires. I had those POS elite sparkplug wires awhile back and the car wouldnt even run in the rain... thats how bad they were arcing. That 1/2 mile push to my house in a downpour sure was fun....

 

Its an enclosed CAI, and yeah i think its the wires I have a new set of AC Delcos im going to put on today hopefully i find a bad wire or something, they havent been changed in almost 3 years, i hate figuring out these mysteries with these LT1's but after awhile, you get good at it

 

change the wires already,it isnt that bad of a job especially since you have access to a lift.

 

My first LT1 did that and so did my brother's current LT1. Both times it cleared up after a bit of driving.

 

I drove from Albany NY to Brooklyn to Queens last night in all the rain, pretty hard most of the time. Hydroplaned the 315's a lot.

I was thinking if I still had the '94, I wouldn't have even attempted the drive.

 

I don't get all these rain problems people report. I have driven my TA down the Interstate in rain so hard that some people would pull off the road or drive with their flashers and not a sputter. Same with the 95 I used to have. Have you guys removed the panels along the bottom that cover the area behind the front bumper, or maybe your plastic wheel well liners? I know those don't cover the opti, but removing them will change your airflow under the car and might cause water to blow where it normally wouldn't.

 

I had the same problem with my 94z. It was my O2 sensors, had long tube's and i had to extend the 02 wires used just some butt connecters and e-tape, well every time it rained water was getting in the butt connecters and was grounding them out.

 

I changed the wires today, a few wires had some hairline cracks in it. As for the performance, it seems to run/rev alot smoother, no more miss though