1999 Chevy Blazer

1999 CHEVROLET BLAZER
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BUSYUC
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  • 1 POST
1999 Chevy Blazer
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i just purchased a 99 s10 blazer the catalytic converter has been removed is that a problem ?
Also ck engine light is on as per codes replaced mass air flow,spark plugs, wires,cam sensor did not fix please help
Jul 20, 2008 at 10:20 PM
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SWILLIAMS
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  • 597 POSTS
Yes. There is a second O2 sensor after the converter. It tells the ECM if the converter is OK and acts as a back-up sensor to the front one.
Also keep in mind that removing the converter is a federal offense.
Jul 23, 2008 at 4:47 PM