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  1. Secondary air pump not activating

    Volkswagen Passat B5 Discussion
    I recently changed my secondary air pump after the old one whined and eventually stopped working altogether. The new pump does not kick in when I start the car with a cold engine. The pump works when hooked to an external battery. The relay (373) seems to be fine, with no resistance between...
  2. carbon plugging in Secondary Air passages

    B5 Garage
    In 2000, 2.8 L Passat. I'm pretty sure my secondary air paths are clogged with carbon (downstream of the combi valves). SAI pump works as do both combi valves. The main holes back from combi valves have been cleaned, and are fairly free of carbon. However, the other holes that lead to the...
  3. 2000 Passat B5 1.8T - Secondary Air Injection - Troubleshoot - P0411

    Volkswagen Passat B5 Discussion
    I have had an intermittent P0411 code for a while, and want to get the car ready for emissions testing in a couple months. Initially, I had replaced the vacuum 3 or 4 vacuum hoses, all the way from the diverter valve to the kombi valve. This did not fix the intermittent P0411. Note: the pump...
  4. P0491 P0492 Secondary Air Vacuum Lines

    Volkswagen Passat B5 Discussion
    I have seen some older posts addressing this topic but bringing it up so we have some pics for the next generation of PWers. So I got the codes above and knew it wasn’t the SAIP pump itself since I could hear it. Next up, check on the combi valves. I didn’t need to go far - as soon as I...
  5. PO411 Secondary Air Circuit A open

    New Member Introductions
    Hi, 2004 AWB engine error code PO411 on reader Circuit A open what should I be looking for to solve?
  6. secondary hood release

    Volkswagen Passat B5 Discussion
    Went out to jump start my car this morning (long story) and when I pulled on the T handle, it came off in my hand. And not just the T part where I could reach in and grab the rest with pliers, oh no, the whole 6 inches of plastic came out. At the end opposite the T, instead of looking like O's...
  7. Secondary Air P0411 Carbon Blockage

    Volkswagen Passat B5 Discussion
    2000 ATW. I got the P0411. I read a million threads but haven't seen much discussion about carbon blockage in the passageways beyond the combi valve. History is I had many problems with the SAIP over many months. I had both hoses cracked - replaced 'em. Had an intermittent clicking and...
  8. Secondary air injection pump runs constantly and brake fault message

    Volkswagen Passat B5 Discussion
    I've searched on this forum and can't find whether my 2 problems are related. I have a 2003 Passat GL 1.8T, manual transmission, 164,000 miles. 1. The secondary air injection pump runs when the engine is off and key is out of the ignition which drains the battery. It'll run for a few minutes...
  9. Replaced Secondary Air Injection Pump... still getting code!

    B5 Garage
    Yesterday I replaced the secondary air injection pump with a new (used) one. I worked too -- I could hear it running when I started the car. Yet this morning when I started the car up to go get it smogged, I got the EMISSIONS WORKSHOP warning again, and when I pulled the code with my VAG-COM...
  10. CEL On for Secondary Air Injection

    B5 Garage
    So I have had the P0411 code on my VW passat for probably a few months. About 6 months ago it came on, was on for a week, then left. Then a few months ago it came on... and did not leave. I tried resetting it just recently using the battery disconnect and discharge, but it returned after about...
  11. Outlet of Secondary Air Pump had water, I guess I'm needing combi valve?

    B5 Garage
    Saturday I replaced the SAIP in my 2004 GLS 1.8T AWM engine. The original pump had been generating LOTS of noise and then CEL for incorrect flow detected. Ordered replacement from Ebay for $ 75 USD, arrived from China in less than 3 weeks - not bad at all me thinks. In removal of the old pump...
  12. Secondary Cooling Pump Leak??? Jay the Snork? PZ? Tomvw?

    Volkswagen Passat B5 Discussion
    I was chasing a burning electrical smell in my 2000 V6 FWD. I ran it down to the electrical connector on the bottom of the secondary cooling pump. http://www.passatworld.com/forums/volkswagen-passat-b5-discussion/337533-secondary-coolant-pump-b5-v6-can-i-disconnect.html thread seems to indicate...
  13. Need some help with secondary air

    Volkswagen Passat B5 Discussion
    I'm getting a p0411 code on my 1999 v6 passat I here the pump come on and hoses look good but I do notice air coming out of the seam around the pump could the be the rivits went bad and thats why I have the cel on.... can the pump be changed with out removing the bumper
  14. 04 Passat 1.8T 4-motion wagon secondary air pump

    New Member Introductions
    My car sound like a vacuum cleaner - except when I'm by the airport in which case it sounds like a jet aircraft. Should I just assume that the secondary air pump hoses are broken or that the housing is leaking on the pump? It would seem to be a fairly obvious diagnosis but could it be any other...
  15. Secondary coolant/fuel cooling pump

    B5 Garage
    Hi all. I purchased a 2002 Passat 1.9tdi sport 2 weeks ago. Yesterday the STOP check coolant light flashed up. I pulled over a found the coolant pouring out of the drivers side. I refilled the Tank with water and continued home. 3 times since yesterday I have had to pull over, twice the...
  16. Secondary Air Pump Hose Cracked

    Volkswagen Passat B5 Discussion
    Hey guys longtime lurker here! About 2 weeks ago I changed the passenger headlight bulb and had a rough time moving around in that area. I noticed 2 days ago that a loud noise kept going on and off intermittently (which I now think is the secondary air pump). I made an appointment with my...
  17. clear fluid dripping from secondary skid plate

    Volkswagen Passat B5 Discussion
    Ok so I've recently - today , had the panels off from under the car to do the coolant switch and the thermostat and housing as it was not working and when checked it had been installed wrong !!!!!! well new ones are all in as well as new oil dipstick tube grrrrrrrrr. whilst mooching under the...
  18. secondary air injection pump remove??

    Volkswagen Passat B5 Discussion
    Just got done putting a front mount on my b5.5 but I had to remove the saip. Do I need to relocate it and hook it back up or is it going to be ok to leave it off completely? Not too concerned about emissions test or cel.
  19. Secondary air pump problem

    New Member Introductions
    I took my car at the dealer they told to replace the secondary injection air pump so I walked out since I was going to do it my self which I did but same problem o searched and found a 20v fuse under the dash close by pedals on driver side and the check engine light went off right away, but...
  20. Help with trouble shooting secondary AI Syst.

    New Member Introductions
    I recently purchased a 2000 Passat 1.8t with ATW engine with about 75K miles and have been battling a secondary air injection fault for past 6 months. Initially got the CEL with code indicating the SAI Syst. and took car to a VW mechanic who replaced the pump, but the CEL came back after a few...
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