alanlee2274

i bought a 98 ss camaro about a year ago from an older man who had it sitting in his garage,it only had 4,000 original miles with no mods.since then i put most of the bolt ons that i could,ls6 intake,mti throttle body,lid,hooker headers,borla cat back and ls1 edit tuned at mti in houston.my problem is the car runs excellent when dry but if it starts to rain the check engine light starts blinking and it starts to misfire,but when the light stops blinking it runs fine again even in the rain.i took it to auto zone and it reads multi-cylinder misfire.i changed plugs,wires,changed each coil but it still did the same thing.i looked underneath the car for any bare wires but couldnt find nothing.i even sprayed each individual coil with a light mist of water but again nothing.could anyone help with this problem before i take it to mti and they charge me out the *** for something i could have probably done myself.thanks for the help.

618HAWK

iTrader: (361)

Have you checked your coil pack connectors as well, the main ones for each side?
I would also take a look at the cam and crank position sensor connectors. Pay close attention to the crank sensor. Its down low were it might be getting wet. Make sure they are all tight and clean.

alanlee2274

thanks man i will take a look

blk/slvr02ss

iTrader: (21)

i had that happen to me once on my 98 z-28 and it end up being #8 spark plug wire was just barely on.thats the pain in the *** one to get too. good luck. i hate electrical problems.

alanlee2274

ill double check thanks

SoCalZ28

iTrader: (10)

dont forget the di electric grease to seal the moisture out of the ign. wires

alanlee2274

would you put that on both sides of the wire

Abandon All Hope

check your o2 sensor connections for moisture. hooker supplies an extension with the headers and the connector is behind the front wheels. water off the road would get into them and give p0300. changed to 13111 sensors and did away with the extensions

Stang-Slayer

iTrader: (16)

SAME EXACT THING HAPPENED TO ME ON MY 98Z!!!!
SPark plug boot came almost all the way off...barely made contact with spark plug boot.....it lost a lot of power and has a suddle misfire at an idle

Lol didnt know what it was till i went to change my wires on the car to try and fix the prob and found out one was barely on

1999Transamman

iTrader: (18)

Electrical problems are like having a grimlin in your car. Check all the electrical connections for your coils, bent pins, corrosion, residual moisture, small things like these can cause big problems. Odds are its just something simple, trick is finding it. Good luck!

98ws61le

any news on this issue

oner

did you remove the shroud under your airbox? After I did that my air intake started to suck up water, even if I only hit a puddle.

alanlee2274

no i didnt remove it but ill take a look at all the connections.thanks.right when i think ive found it it keeps coming back.stupid gremlin.

alanlee2274

any more advice appreciated

scof0elife

iTrader: (4)

Mine did the same exact thing after it rained cats and dogs. It turned out to be my o2 sensor that got wet and replaced it and it was gone thanks to (AZRAEL, thanks man)

superslowjoe

MIne does the same thing, Its the 02 sensor wire, make sure it doesnt have a cut in it, mine did, it happened to melt on the header, changed it and the problem went away, good luck