LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

EEEK !! Water + Ram air hood = funky running engine

Old Mar 27, 2006 | 02:36 PM
  #16  
97SS0594's Avatar
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From: baycity, mi
Re: EEEK !! Water + Ram air hood = funky running engine

an exhaust leak shouldnt cause a rough idle, itlle sound alot more rough, but it shouldnt actualy run worse.
Old Mar 27, 2006 | 02:58 PM
  #17  
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From: PA
Re: EEEK !! Water + Ram air hood = funky running engine

An exhaust leak will show the O2 sensors oxygen that isn't really there. The car will in turn think its running lean and dump fuel in when infact the A/F ratio is fine. This can cause the car to run rough. Also the difference in backpressure can make the car feel a lot different than your used to.
Old Mar 27, 2006 | 03:20 PM
  #18  
WS Sick's Avatar
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From: Oklahoma where trees are made of wood.
Re: EEEK !! Water + Ram air hood = funky running engine

Originally Posted by kick Z tail out
Sounds like the opti got wet to me. It should dry out and be just fine.


The guy that put my MSD opti on accidentally did something wrong, not sure what... But it gets wet when I go through the Laserwash or give my car a heavy spraying of water. :blah:

Yesterday I ran it through the Laserwash and picked up a rough idle in the bay (3rd time). :blah: I ran the car in 3rd down the road to keep the RPM up, jumped on the highway and did several WOT runs up to 70. Car ran perfectly after that.

Hopefully yours dries out.
Where did you find someone that has the MSD full opti ? Everyone I have contacted says it will be May or June until they get them, or did you just do the cap and rotor? I was wondering because I'm wanting the whole MSD dist bad, but if they have the same problem with water, why bother?
Old Mar 27, 2006 | 06:06 PM
  #19  
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From: Ocala, Florida
Re: EEEK !! Water + Ram air hood = funky running engine

Originally Posted by LqMth
An exhaust leak will show the O2 sensors oxygen that isn't really there. The car will in turn think its running lean and dump fuel in when infact the A/F ratio is fine. This can cause the car to run rough. Also the difference in backpressure can make the car feel a lot different than your used to.
A leak at the back of the y-pipe won't mess with the 02's, they are way before the back of it... It was water that got in the opti that caused the miss.
Old Mar 27, 2006 | 08:59 PM
  #20  
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From: PA
Re: EEEK !! Water + Ram air hood = funky running engine

He said a piece of the Y-pipe. He didn't specify where. Anything within even a foot past the O2's will give a false reading. Especially a 2" opening. He never said it was at the back of the pipe. I originally said it was the ignition also. They both were problems. I was just saying an exhaust leak can cause the car to run rough. Either way its fixed now.
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