Why is my car studdering/missing?

[SlipStreamZ28]

Ok, this just started happening like a couple months ago. Whenever it starts raining enough thats theres pockets of water on the ground my car will start to sputter and die. It never actually stalls but if i try to gun it, the car just comes in and out of power making it surge if that makes sense.

If I get a bad enough bogg the check engine light comes on but will turn off by itself whenever it dries out. By whatever chance its alway been night when this happens so I can never take it to get scanned by autozone when it happens.

Im guessing I have to have a short or open somewhere, or the optispark is getting wet.

any ideas??

[jakes_GSXR]

my car does this early dew morning i think.. kinda strange takes like 20 minutes of turning over for it to start.,,, very odd.

[TenaciousB]

I'll blame the opti right off the bat. Ive had two LT1s and they have always given me problems.

[jakes_GSXR]

any ideas on mine? it just kinda does it whenevr it wants, usually early morning.

[BP_Z28]

Had a similar problem..but mine was the Ignition coil and module

[TenaciousB]

My brother's LT1 trans am has trouble starting on "dewy" mornings as the water condenses on the opti. If its having trouble after running for a bit, it might be the engine heat evaporating some water which then settles in the opti.

On my old 95 camaro, I had similar issues which ended up bein tied to a corroded connector on the opti.

[SlipStreamZ28]

well looks like a might as well replace the opti when i do the waterpump AGAIN this summer. Any clue if I have to replace the whole opti or can just get away with a cap and rotor set?

[jakes_GSXR]

what would be the problem with mine, cause i dont have that cute little opti guy

[MP81]

Fuel Pump - or at least that's what my starting problems were caused by. Hell, it'd take about a minute-plus of straight cranking to get it to even sputter to life - every time I started the car.

[TenaciousB]

When i worked on mine, we replaced the cap & rotor, but did some serious cleaning while it was taken apart. When it was all said and done I wished I had just replaced the whole thing since it was such a pain in the ass to get to and I didnt want to do it again.

[Virtue]

opti, you can replace the cap and rotor, a delco unit runs about 180 from what i've seen since i helped a buddy with one

[02redz28]

for the coil on cylinder LSX motors!

[jakes_GSXR]

i did the cap and rotor on mine but it still didn't fix it, i believe it didn't. man i haven't drove my car consistently in about a year and half . i forgot all its symptoms and gayness.