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  1. #1
    Master Mechanic zubbiez's Avatar
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    Default had SES lite come on

    so the service engine soon light came on, I put the ole diablo predator on it and it came up with this trhee codes p0452 p0453 and p1441 there all to do with the evaporater but I dont know where to start any Ideas out there? oh yeah I get tested so ignoring its kinda not an option
    2000 Silverado Z71 Whipple Supercharger, JBA Headers,3" cat back Flowmaster Exhaust, Volant cai, Pioneer Preimer deck,Orion subwoofer,03 signal light mirrors,03 taililghts

  2. #2

    Default

    P0446 = EVAP Emission Control System Vent Circuit Malfunction i would start there for the evap system should fix the p0452 and p0453 the p1441 is purge control valve could be a small hole in line or its unpluged from some where

  3. #3

    Default

    Quote Originally Posted by zubbiez View Post
    so the service engine soon light came on, I put the ole diablo predator on it and it came up with this trhee codes p0452 p0453 and p1441 there all to do with the evaporater but I dont know where to start any Ideas out there? oh yeah I get tested so ignoring its kinda not an option
    This is a great example of one code causing several other codes. This happens quite frequently especially with electrical circuit codes. When the power to a circuit is lost the PCM sees that and sets a circuit code. The PCM isn't smart enough to figure out that when the circuit goes dead and a solenoid quits working it causes other problems. So the PCM may flag several codes that are really false codes in the sense that once the solenoid starts working these other problems won't exist anymore. So like grimreapershadow said start with the circuit code. The first place to check is the fuses then see if the solenoid is getting power.
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  4. #4
    Master Mechanic zubbiez's Avatar
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    Default thanks guys

    Ill tear into this even gotta take the kids to transformers this afternoon,

  5. #5
    Master Mechanic zubbiez's Avatar
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    Default okay so I feel like an idiot

    which fuse should I be checking and is the silinod right behind the throttle body under the plastic cover

  6. #6
    Master Mechanic zubbiez's Avatar
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    Default fixed it

    I pulled the purge valve silinoid from the manifold and blew into it the air went right threw the vavle was wide open, broke out a can of carberator cleaner shot it into the valve them just used my compressor and blew it out a little. valve closed reinstalled and no more ses code. total cost 0$

  7. #7

    Default

    nice zero is a good number

    2003 Z71 Silverado LS
    Access roll up cover
    Bed Rails
    Billet Grill insert
    Bed Rug
    CB with PA system
    Waiting to be installed
    Two 8in RF HX2 punch( would have 12s but they got stolen)

  8. #8
    Master Mechanic zubbiez's Avatar
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    Default

    Quote Originally Posted by Z71_guy View Post
    nice zero is a good number
    It sure is I kinda went pale when it came on, Last Time it came on I had to replace the cats!

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