Question about 1996 Chevrolet Blazer

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Wont complete scan to pass emission test

My 1996 chevy blazer 4.3 wont go thru emmision test no check engine light and when the test place or myself scan vehicle keeps saying readiness test not ready only for 02 sensors egr and evap???? but no trouble codes?

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  • Donna Jun 29, 2013

    Yes, But i need to know how many miles to get it right. I tried and got down to 2 in nj you can only have 1 . had it reset and have drove 60 miles so far and still have 3, how much further so I don't turn the engine to get through inspection

  • Donna Jun 29, 2013

    Sorry I think I put my comment in the wrong place lol

  • Anonymous Mar 15, 2014

    need to find leak in evap system

  • Anonymous Apr 01, 2014

    changed fuel pump computer is not ready for emmisions test how many miles do I need to drive

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When you rest your codes there is a series of tests your ECU has to go through before you can pass emissions. this is done some people can reset the code and go before its sets the code again. on the 96 you can have 2 tests not complete for it to pass. basicly you have to drive the car a couple days for the tests to pass.

check the readiness tests wait until only 2 have not passed. then you should be good.so drive and check.

Michael
ASE certified
PLZ rate.

Posted on Feb 09, 2009

  • Michael Gutwein Feb 09, 2009

    sorry for the spelling. its to stop people from reseting the engine light and going to emissions before the code appears again. pre 00 can have 2 not passing and 01 can only have 1 not passing. where 02 and newer has to have all passing.

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