Thread: OCD II P1652 code on a 1996 Grand Prix

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  1. #1 OCD II P1652 code on a 1996 Grand Prix 
    EClaiborne
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    Default 08-21-2015
    Does anyone know what repair is needed to clear a P1652 code to pass emissions test.
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  2. #2 Re: OCD II P1652 code on a 1996 Grand Prix 
    Scottydoggs
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    Default 08-21-2015
    looks like its the pcm maybe, or a pinched wire to the fuse box or the pcm. http://www.fullthrottlev6.com/forums...51-p1652-p1654

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: OCD II P1652 code on a 1996 Grand Prix 
    JamesIvey24
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    Default 08-21-2015
    is your temp gauge working? on that year, the code points to cooling fan issues
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