L-Jet Auxillary Air Regulator or Valve?, Proper operation of the AAR Options

[malcolm2]

I found an very old, very short post about the subject and cleaning the AAR with PB Blaster. So I guess I'll try that. But that post did not answer my current problem.

I have had my AAR off of my car and the hose connections plugged for about 6 months now. But it is getting cold and it has been recommended that I put it back in service. So I tested it. And took some pictures along the way. I did the FREEZER test and it opened.




I sat it in the sun. Very warm exterior case. Kinda tuff to hold it. It absorbed a good bit of heat.... and almost closed.



Then I broke out my handy dandy 12v drill battery and within a few seconds it was closed.



here is the question..... I tried to blow thru the closed hole and had ZERO problem doing that. So I suppose when closed that NO AIR should pass thru, correct? Will the PB Blaster cleaning help, or is this baby done for? Any ideas on fixing?

Thanks.

[jim_hoyland]

The force of blowing air through the AAR far exceeds the vacuum from the plenum; all the L-Jet AARs i’ve Used allowed air to pass through when I blew into it.
The real test, ow that you know it functions, is to install it and start the engine. With a cold motor, RPMs are gonna start out higher than normal idle. The warmed engine will drop RPMs to the idle setting

[pete000]

The force of blowing air through the AAR far exceeds the vacuum from the plenum; all the L-Jet AARs i’ve Used allowed air to pass through when I blew into it.
The real test, ow that you know it functions, is to install it and start the engine. With a cold motor, RPMs are gonna start out higher than normal idle. The warmed engine will drop RPMs to the idle setting

(IMG:style_emoticons/default/agree.gif)

I think yours is functioning properly. You should test its function in the car when the engine is running and there is 12 volts going to the connector. I believe the voltage is only present when the fuel pump is running, so turning the key will not trigger voltage to the AAR unless the starter is cranking.

I found a bad connector pin on my harness causing no voltage to go to my working AAR.