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04-26-2010, 11:16 AM #1
- Join Date
- Jan 2010
- Location
- California-Sacramento-Roseville
- Posts
- 145
Red- 2000 Chevy Camaro Z28
Pre-Cat O2 Sensors (If's & Ands & Butt's)
So I need to ask,,,
what is one of the pre cat O2 sensors on a Ls1 stock motor is bad, what happens to the driveability of tha car.
Would the car still run great with a little hesitation at idle,,,yet still burnout in 1,2,3 gears,,,
Or if one pre cat sensor was bad would car go into that limp biscuit default mode?
I wonder this since I get a P0300 code and all plugs are getting sparks..
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04-26-2010, 02:35 PM #2
Generally a bad 02 sensor will make it run poorly, but if you're only getting the 0300 I wouldn't suspect 02 sensors. Do you have any mods, is it a stock tune, et.c are the questions to start with.
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04-27-2010, 07:23 AM #3
check for egr leak at the manifold. Mine did the same thing and it had a small crack where the egr tube is fused to the flange where it seals to the intake manifold. Regardless, it sounds like some kind of small vaccum leak.
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