MPH go up when i rev while stopped, out of gear M6
This is a discussion on MPH go up when i rev while stopped, out of gear M6 within the General Help forums, part of the LSx Technical Help Section category; so my car started sounding funny today, i have LT stock cat back and a electric cut out. when i ...
03-19-2008, 06:04 PM #1
Strange exhaust sound, whith electric cut out open
so my car started sounding funny today, i have LT stock cat back and a electric cut out.
when i go WOT the tires dont break loose as fast as they have been the exhaust seems to not be as loud, and has alot more rasp to it
like there is a exhaust leak, but when i shut the cut out there is no exhaust leak to be found. there also is a squeak that happens right be for red line at WOT
scanned it here are the codes... my SES light has been on ever sence i bought the car lol its not tuned for the headers..
Last edited by ApexVIII; 03-20-2008 at 12:57 PM.
03-19-2008, 08:45 PM #2
dont worry about the mph gauge my car does it too and i also have afreind with a 98 1500 his does the same thing as for the rest i will have to give some thought
03-19-2008, 08:49 PM #3
- Join Date
- Sep 2006
- Canby, Oregon
- 1999 Camaro SS-M6 #1775
My Camaro doesn't do it but my Chevy K2500 does..
I dont think its a problem, it accurate according to GPS1999 Camaro SS/ Pewter/ #1775 - LS1 6-speed - Predator 3 Custom Tune - Pro 5.0 - LS7 Clutch - 3.90's - Koni's - Strano Springs and Sway Bars - SFC's - Full UMI Chassis and Suspension - LS6 Intake PnP TB - ARH LT's and Kitty Ran Away - Magnaflow.
12.6 at 112
03-19-2008, 10:03 PM #4
03-19-2008, 11:31 PM #5
any unusual ticks? Could be an exhaust leak that's not showing itself until you go WOT. How many miles on your O2 sensors? Notice an unusual amount of soot in the exhaust tips? Just ideas. It could be a ton of things. Start simple and cheap.
03-20-2008, 12:05 AM #6
i replaced the passesngers side one about 2k miles ago. but the odd think that makes me think its not a exhaust leak even though it really sounds like one is,
that it sounds bone stock with the cut out shut then when i open it thats when i hear the raspy/exhaust leak sound. the car does also feel weaker too.
not really any weird noises other then the squeak at WOT and the exhaust noise
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