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    Thread: Secondary air pump fuse???

    1. 09-30-2004 12:49 PM #1
      Can anyone tell me where the fuse is for the secondary air pump on a B4? My OBD is reading a secondary air pump fault code and the dealer said it is typically a fuse. Any help??

    2. Member VdubTUNA's Avatar
      Join Date
      Aug 16th, 2003
      96 VW Golf 2.0 - 97 VW Passat VR6 - 2001.5 Passat 1.8t Estate - 2005 Acura RSX-S - 2011 Mazda Speed3
      09-30-2004 03:05 PM #2
      i had that fault code but it was due to a missing vacuum line if that helps....
      Troll'n hard.

    3. Member Shikaroka's Avatar
      Join Date
      Dec 12th, 2002
      Charleston, WV
      09-30-2004 04:41 PM #3
      I don't think there is a fuse for the air pump.
      If there is, I've never seen it.
      It is normally a vacuum leak or a bad combi valve.

    4. 10-01-2004 03:32 AM #4
      hey not to steal a thread about this may help
      can anyone put up a pic of the secondary air pump and the vacuum lines that are attached to it and where they go...
      i dont have a manual and this could be a nice lil write-up/diy for someone with a digicam, since this seems like a prob that happens often for our vr's
      thanx in advance

    5. Member
      Join Date
      Jan 26th, 2003
      2008 GTI
      10-01-2004 10:05 AM #5
      I replaced all the vac lines for my pump. Didn't fix the fault. Rather than replace the solenoid or anythign else, it was cheaper to get a diff computer from a car with no air pump OEM. I doubted it would work, and now I believe [IMG]http://*****************.com/smile/emthup.gif[/IMG]

    6. Member thecreeper's Avatar
      Join Date
      Oct 26th, 2001
      2012 GTI | 1996 Passat wagon RIP
      10-01-2004 01:13 PM #6
      The fuse the dealer is talking about is a 50A fusible link; it's located behind the battery, under a clear flip-top lid along with a regular 5A and 20A fuse. There is also a relay against the firewall (#111) that often has its spade connectors corroded. Just clean them up with some sandpaper. Also the solenoid could be bad, it's only around $8.00 from IMPEX, part# 191906283A.
      There isn't much to the whole secondary air system; just the pump, combi-valve, vac lines, solenoid (AKA changeover valve), relay and 50A fusible link. I actually just got mine taken care of this morning for good, my relay was bad and I had a bad solenoid valve.

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