Quickest and easiest way to disconnect the secondary air pump?

[Sobek]

Hey guys,

Just wondering what the easiest way is to go about disconnecting the secondary air pump. It's not making any awful noises, but I've noticed that every 2 seconds or so it 'pulses' and causes all of my lights to dim and my voltage readout to drop to about 13v flat - not very good. Just want to disconnect it for a while and monitor things.

I read somewhere years back that someone said you can get at the electrical connector on it just by popping out the front right fog light - is it that easy? Any guides that deal with it are usually guides on bigger jobs, and by that point the whole bumper is off or something. Either that, or perhaps there is a relay I can pull? Mine's a 95 remember.

Appreciate the help, cheers :)

[cazal740i]

Pull the passenger side fog light out and reach in and unplug the harness from the SAP

[srq]

I have noticed this too and just wondering what is the purpose of the secondary air pump?

[E39 Expert]

Pull the fuse

[Carcraz8]

It's easy to replace and I just purchased one for 149.00 rebuilt with a 3 year warranty !

[Sobek]

Pull the passenger side fog light out and reach in and unplug the harness from the SAP

Easy as that hey, nice. Thanks :)


I have noticed this too and just wondering what is the purpose of the secondary air pump?

On cold starts it injects cold air into the exhaust manifolds before the catalytic converters, to help speed up their warmup process and provide cleaner exhaust gasses for emissions reasons.


Pull the fuse

Might look at that if for any reason I can't get at it from behind the fog light, need to look up what relay or fuse it uses first.


It's easy to replace and I just purchased one for 149.00 rebuilt with a 3 year warranty !

Honestly, since we have no emissions control here, if and when mine eventually fails I'm going to yank it, cap off the secondary air pipes and leave it at that. One less electrical gremlin to go wrong :)