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    SusanK3120's Avatar
    SusanK3120 Posts: 2, Reputation: 1
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    #1

    Mar 19, 2007, 01:10 PM
    OBD II reading "Not Ready" - can't pass inspection
    HELP! I have a 1999 Saturn SL and live in NY. My car went for inspection about 10 days ago and couldn't do the emissions test because my on board diagnostic computer was "not ready" for 4 tests:

    Catalyst
    EGR
    Evap System
    O2 sensors

    I was told to "drive it for a while" or do a drive cycle per GM suggestion and the computer will "re-set" in time.

    Please note the following:

    -My SES light has never come on - ever, except for start up.
    -I changed the battery 9 months ago - enough time for the computer to clear out the monitors if that had reset it;
    -The Jiffy Lube personnel messed with my fuses - i.e. my odometer wasn't lit when I picked the car up, I pulled over, checked the fuses, and found several to be loose, not pushed in all the way. The odometer light came back after I ensured all fuses were properly seated... therefore, I believe that the interruption to the power came during the inspection.
    -I have driven the car over 350 miles so far in different ways - highway, city, stop and go
    -I have followed the GM "drive cycle" recommendations 4 times so far;

    Nothing is working.

    Any ideas?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Mar 19, 2007, 02:25 PM
    Several thoughts:
    . Test all under-dash and under-hood fuses with a test light or multimeter. Here's how:

    https://www.askmehelpdesk.com/cars-t...tml#post252145

    . Test for any codes, by attaching a scan tool to the under-dash Data Link Connector. The scan tool can also reset the computer. Autozone will do this for free.

    . Check connections going to the ECM, being sure to disconnect the negative battery cable first. If this doesn't solve the problem, I would check out the ECM. It would be great if you could substitute a known-good ECM and see if the problem goes away.
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