It feels like I'm running lean at times. I only have a narrowband a/f gauge and it looks like it hangs in the red a lot. I know they are not very usefull and I'm waiting to upgrade to WB a/f gauge soon. But for now...how can I make sure my BAP is working? I tried data logging, but it only reads a max of 13 volts. Plus i'm not sure if I data logged the correct sensor. i'm also not sure if the reading is before or after the BAP. If i check the voltage at the BAP, shouldn't the pumps be at full load (WOT) to get the 17volt readout?

Is there an easy way to make sure my BAP is working?

 

morning bump

 

This would be good to know. Does this warrant a call to KB?

 

I've wondered this myself. Mine is turned all the way up to "Rich" and my AF is good, so I've been just assuming it is doing its job.

 

I have mine at rich too with the boost bypass activated 100% of the time. Everything was working fine until a few months ago when I started seeing the A/F in the lean during hard acceleration. The only way I can think of testing this would be to have a friend hide in the trunk and put a voltage tester as I go WOT. maybe i'll get a 17 volt reading?