Running Rich!!!!!!!!!
Thread Starter
Advanced
Joined: May 2008
Posts: 72
Likes: 0
From: Roanoke Rapids NC
Running Rich!!!!!!!!!
First of all I would like to thank everyone has gotten me this far on my stock 85.........I just replaced the injectors.....well had a few tech promblems since then.............( the timing) .........I think I have got that worked out..........now when I am idling it smells like it running way to rich (burning your eye rich) ...........any IDEAS.........Thanks Bo
Burning Brakes
Joined: Jun 2003
Posts: 1,079
Likes: 1
From: Niagara Falls ON
Could be a vacuum leak.
Poor spark will result in a rich condition. Check the condition of the spark plugs, wires, and distributor.
Check all of the connections before and after the MAF. If air leaks anywhere the air that the MAF reports will be false, creating a rich condition.
How is the fuel pressure?
Is the charcoal canister connected? What is its condition?
Poor spark will result in a rich condition. Check the condition of the spark plugs, wires, and distributor.
Check all of the connections before and after the MAF. If air leaks anywhere the air that the MAF reports will be false, creating a rich condition.
How is the fuel pressure?
Is the charcoal canister connected? What is its condition?
Thread Starter
Advanced
Joined: May 2008
Posts: 72
Likes: 0
From: Roanoke Rapids NC
Double check..............24lbs injectors.................. I have tried to find a diagram of the vacum lines..............No luck.................
New plugs, wires, coil, etc............. Thanks Bo
New plugs, wires, coil, etc............. Thanks Bo
Race Director
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
If you have a vacuum leak, wouldn't you notice a change/problem with your idle speed?
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Safety Car
Joined: Oct 2008
Posts: 4,022
Likes: 30
From: Los Angeles CA
burning eye's doe's it go away after warm up? if it does maybe your air pump is not rushing air to pre heat the cat, or you popped off an air tube.
Safety Car
Joined: Oct 2008
Posts: 4,022
Likes: 30
From: Los Angeles CA
besides vacuum leak would cause a lean condition,vacuum leak air stream is not read by the Mass air flow and will not therefore will compensate.
Instructor
Joined: May 2011
Posts: 213
Likes: 0
From: Miramar Florida
I've got similar issue, it's not so bad that it burns my eyes. My A.I.R. System has been deleted, I installed a new CAT. I've checked for vacuum leaks and basically replaced all the vacuum lines. When I was doing my vacuum lines I was able find a diagram on the web. I googled it, if I remember correctly it had been posted on some other forum. If you come up with a solution, let me know. I am under the impression that I'm getting the smell of unburned gas because my A.I.R. System has been deleted and the CAT is not getting hot enough.
Instructor
Joined: Mar 2011
Posts: 187
Likes: 0
From: Macedon (near Rochester) NY
I once had the air diverter freeze up, sending air into the manifolds all the time, makig the o2 sensor think it was lean so the computer put it into full rich. Removing the system fixed it and it smelled fine, no new problems. Was a firebird though, but shouldnt be too different.
Keep in mind that 02 sensors can also fail in ways that wont throw a trouble code. Mine had one that once warmed up put out a nearly fixed voltage in the mid .4s. Make a scanner cable, find an old laptop, and check your sensor readings.
Keep in mind that 02 sensors can also fail in ways that wont throw a trouble code. Mine had one that once warmed up put out a nearly fixed voltage in the mid .4s. Make a scanner cable, find an old laptop, and check your sensor readings.
