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06-09-2009, 07:26 PM #1
- Join Date
- Aug 2005
- Location
- West Palm Beach, FL
- Age
- 60
- Posts
- 37
Black- 1999 WS6 Conv.
engine got wet, rough @ low rpm ?
after a heavy rain last week and run through some deep pudddles I'm running rough at low rpm. It clears out when get over 2K rpm. It is worse with the a/c running. When it first started it would run rough if I left the pedal in the same position say at 2200 rpm then goose it to clear it out. Comes and goes. Clear at WOTor heavy acceleration.
If we had a rotor & cap thats were I would look... it feels just like that. Any advice ?________________________________________
99 WS6, Black Vert M6
Lid, K&N, PPTB, PRC 2.5 heads, Comp Cam 228/.588 112 lsa w/ suporting mods, 96mmNW TB,102mmFast, Pacesetter LT's, ORY, Magnaflow, Tune, 4:10's, Aurburn Posi, LS7 Clutch, B&M shifter, Stano/ Koni , 18" C6 rims, 295/30 Kumho tires.
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06-09-2009, 07:55 PM #2
funny thing. my white car does that as well. while using my hptuners i found my right front o2 sensor was pegging completely rich. water is getting into the connector and shorting it out. when the o2 sensor pegs full rich, the PCM pulls all the fuel for that bank. this causes it to run rough until the fuel trims reset.
i would start looking at the connections.Last edited by mrr23; 06-09-2009 at 08:00 PM.
Cold Air Intake, Muffler Delete, Vinci High Performance Dual Valve Springs, Hardened Pushrods, Yella Terra 1.85 Rockers, Some Hydropdipped Stuff, Strut Tower Brace, Some SS Badges, boost/vacuum gauge, fuel pressure gauge, some checkered stripes, drilled/slotted rotors, ZL1addons Stealth wickerbill, Ruxifey LED side markers
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06-09-2009, 08:42 PM #3
- Join Date
- Jun 2008
- Location
- Annapolis, MD
- Posts
- 1,111
BLK/BLK w/CGM Stripes- 2010 Camaro 2SS/M6
I had my 02 sensors start acting up when I went through a deep puddle once and it did the same thing
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06-09-2009, 08:53 PM #4
- Join Date
- Nov 2008
- Location
- Alberta
- Posts
- 71
dark blue- 2000 pontiac trans am ws6
i did the free ram air mod....during heave rain, big ass puddles...my air filter got wet and it choked the crap out of engine...running rough, random miss fires...but just for that day though
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06-11-2009, 02:41 AM #5
- Join Date
- Oct 2007
- Location
- Beaver Dam KY
- Posts
- 7,745
79 T/A -91 Firebird- 1998 Trans Am -Oynx Black
Had the same issue. Changed plugs/wires/ cleaned the coilpacks/connections and it went away...
Still need to grease/clean/replace the 02s
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06-11-2009, 06:18 AM #6
- Join Date
- Aug 2005
- Location
- West Palm Beach, FL
- Age
- 60
- Posts
- 37
Black- 1999 WS6 Conv.
Thanks, I think that will do the trick.
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