SuperC1

iTrader: (4)

O.K guys here the issue. I drive my car back and fourth to work everyday. Lately its been raining a lot and my car has been running like crap. It seems that I'm having some fueling issues dealing with the O2's. When I scanned it B1S1 was pegged out at 11.3mv. What's causing this? Does anybody know? I've checked all the wiring it all looks good I even wrapped my O2 extentions to keep them from getting wet and still I'm having the same problems. Does anybody have a clue about whats going on here.

2MuchRiceMakesMeSick

Hummm my car drive like crap in the rain too... never did until i started modding. I would also like to know.

mjgjr72

runs like crap, like a missfire crap, check your wires for chaffing cracks may be arking when wet, 90 percent of the time is the cause of a car running like **** in the rain

Keenov

iTrader: (5)

What O2 extensions are they? Ones that came with the headers? Or ones that you bought that just connect straight up?

My car is a daily driver, so it sees all sorts of weather and it does not have any problems.

ruck98

iTrader: (1)

My Car Dosent Realy Run Like Crap But Say Im Going About 50mph It Like Something Is Holding It Back

NBM2001z28

iTrader: (43)

it was an 02 for mine, felt ike i was running on like 100 hp.... the connection for the extensions are probably wet. did you put any grease in them?

777

iTrader: (21)

i'd say it is your 02's or some fauty wiring...mine runs fine in the rain...

SuperC1

iTrader: (4)

Got brand new plugs and wires, checked them all.

SuperC1

iTrader: (4)

I wrapped them with a waterproof seal. Do they need di-electrical grease on them also???

SuperC1

iTrader: (4)

Thats it, its not fueling properly. But it only happens when it rains.

SuperC1

iTrader: (4)

I used the ones I bought with the hooker long tubes I purchased. They plug directly into the place where the sensor was originally plugged.
Do I need to get rid of them?

SuperC1

iTrader: (4)

Anybody else drive in the rain???

Phoenix 5.7

iTrader: (7)

all the time and no problems, but then again im stock for now.

SuperC1

iTrader: (4)

Nomally it starts to happen when you add long tube headers and O2 extentions, but I can't tell if its the extentions that are bad or if I just need to replace the O2 sensor. But if the sensor was bad the car would run crappy all the time all the time, not just when the streets are wet.
The hesitation and sputtering makes you think that its in the plugs, but its not.

cyphur

iTrader: (10)

This is an interesting issue. Is it suggested to use di-electrical grease when installing o2 extensions? I'm about to install headers in a few weeks and will definitely do so if thats the case, my t/a is my only mode of transportation.

KySilverado

iTrader: (7)

How about another theroy. Long Tube headers transfer heat much better than stock manifolds. Now throw some water on them.... exhaust gas temperatures go down and effectively put the o2's to sleep? A logging scanner is what you need. I have LT's and its a daily driver. No issues with driving in the rain. Fairly fresh o2's up front, and brand new Bosh units in the rear.

robertbartsch

GM has another defect.

Take your intake manifold off. You will find your rear knock sensor is swimming in water from the rain.

Replace the sensor and silicone the wire plug to the valley cover.....

Your car will run fine in the rain now...

robertbartsch

My car ran like **** in the rain.

I took the intake manifold off and found my rear knock sensor was swimming in rain water....


Replace the sensor, silicone the wire plug to the valley cover and your car will run fine again...

...Another GM defect bites the dust...

SuperC1

iTrader: (4)

How did the water get in there?

SmokingWS6

iTrader: (1)

I'd think the engine heat would evaporate the water in the KR sensor valley, no? I got stuck in a flash flood once, could hardly see in front of me, but it still ran fine.