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    Crimsonsox's Avatar
    Crimsonsox Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 4, 2014, 04:49 PM
    Replacing PO452 sensor on 2000 GMC Safari
    I have a 2000 GMC Safari. It was running OK and started every time. I didn't start my van for five days and when I tried to start it, it would turn over, but not start up. After hooking up the diagnostic computer I got the code PO452, it doesn't seem that the EVAP sensor going out would cause the van to not start.

    I replaced the fuel pump a year ago and replaced the plugs and wires after this go round.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Feb 4, 2014, 08:37 PM
    Replacing the Ignition Control Module (ICM) often solves these problems. Very easy to do on your vehicle.
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