Air pump wiring question
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
Air pump wiring question
1989 auto stock. I want to divert the air pump from sending air down to the converter, but want to keep air going into exhaust ports when engine is cold. Looking at a diagram, it seems as though I could just unplug the Selanoid that allows air to be deverted to converter after the ecm sees a certain temp. The air would then be vented out to space. For those of you smarter than me, am I correct on this or am I all wrong, I am replacing converter with test pipe, but want to leave as much stock as I can incase I ever sale it to someone who has to pass smog test in their area
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
There are two valves in the A.I.R. pump valve combination valve (sorry, best I could come up with -- I don't know what to call it).
One is the diverting valve. It determines if the air goes to the switching valve or gets diverted to atmosphere.
The switching valve switches the air between the exhaust manifolds and the catalytic converter. I don't know what the default path is so I can't tell you what unplugging it would do.
My car has the older setup with two separate valves, so it doesn't work the same way.
One is the diverting valve. It determines if the air goes to the switching valve or gets diverted to atmosphere.
The switching valve switches the air between the exhaust manifolds and the catalytic converter. I don't know what the default path is so I can't tell you what unplugging it would do.
My car has the older setup with two separate valves, so it doesn't work the same way.
