I was carefully spraying water kinda over where the spark plugs are, and the engine started to slow down a little.

I look a little closer while doing it and I *think* I see little sparks comming off of the actual spark plugs.

Is this what's slowing the car down while I spray? Is it supposed to do that? I'm pretty sure only the front bottem one is doing it.

 

I am not sure but you better check to see if your spark plug wires are on tight at the spark plugs and on the coil packs as well. You are only using a small steady stream right?

 

Yes, a very light stream.

I'm not blasting the hell out of my car.

I'll go check the wires.

 

It's probably attributable to cheap plug wires. I had this happen on another car I had. I couldn't drive it for 2 hours because of all the water that was on it.

 

Two problems there:
Spark leakage will rob power.
Spark leakage will ingnite any flamable vapors from -say - a pulse damper leak.

 

I've sprayed pretty much the whole engine down and I couldn't find any signs of leaks.

There arn't any vac lines under the plugs, are there? :/

I guess I can rule that out to fix my idle problem.

Thx guys.

 

ok if thier were spars comming from the spark plugs themselves i might want to pull that one out and check it because i sounds like it have a crack in the porcelin. were you slip the boot on. check carefully thier hard to see. also for the cause of this is torqueing them in too hard or got to hot and then cold and believe me spark plugs can get hot and spraying water on them might have damaged one. so check if you want.