'04 C5 Modded having 02 sensor issues
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Registered User
Joined: Jul 2007
Posts: 2
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From: Sunny Florida
'04 C5 Modded having 02 sensor issues We think the guy who modded our car removed the rear o2 sensors. WE were told you could delete these from the computer, and supposedly have had it done, only to have the problems come back after x amount of miles.
Is there a tried and true way to remedy this issue? I've heard o2 sims and then heard you don't need them in 04 and above vettes.
Thanks!
Is there a tried and true way to remedy this issue? I've heard o2 sims and then heard you don't need them in 04 and above vettes.
Thanks!
I just read in the other post you posted in and it said that you are having problems with it stalling at lights and idling too high in gear. Has the car been tuned? These are all things that can be altered in the tune. My car would die if i came up to a red light fast and pushed in the clutch, so I went back to the tuner and we drove around for about a 1/2 hour and he had his laptop hooked up and saw what was going on. He made a couple of adjustments to the tune and it took care of the problem. My guess is if it is tuned, the tuner may have messed up something in the tune.
TECH Senior Member
Joined: Apr 2004
Posts: 6,157
Likes: 1
From: Texas
Originally Posted by BBM98C5
I just read in the other post you posted in and it said that you are having problems with it stalling at lights and idling too high in gear.
those symptoms to me sound like a air leak
try spraying brake cleaner to see if you can detect leaks with it running
Do you have any way of reading how they are sweeping? Anyone with a predator that you know for a late model GM? YOu could use that to scan it.
On that note,..check all of your 02 wires, for sensors 1 and 2. It sounds like a hot header, being close to a wire has worn the wire through,...or melted it completely. Most likely what happened, unless your tune is BUNK from the start.
If this is the case, you can fix this. But, sometimes it isn't super obvious, so, inspect the **** outta the wires, looking for any visible wire, or melted wire/loom.
Hope you find your problem.
Job one is to find a scanner, and see which one is sweeping funny.
peace.
On that note,..check all of your 02 wires, for sensors 1 and 2. It sounds like a hot header, being close to a wire has worn the wire through,...or melted it completely. Most likely what happened, unless your tune is BUNK from the start.
If this is the case, you can fix this. But, sometimes it isn't super obvious, so, inspect the **** outta the wires, looking for any visible wire, or melted wire/loom.
Hope you find your problem.
Job one is to find a scanner, and see which one is sweeping funny.
peace.
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