1G AFPR Return Air

[barza21]

Hello All,

Today I was looking for an issue with the vehicle (it's been going on for some time) and looked at the fuel coming out of the AFPR. The video shows some air bubbles coming out. I am not sure if that is normal or not. I have never looked at the return side of an AFPR and don't know if the adjusting side of it can create something like that. Along with that, whenever that car has been shut down for a few minutes, the cranking takes longer than usual and usually ends with a "whooping" sound right before it catches. Almost sounds like air rushing through something. Attached is the video that shows it. I activated the fuel pump via link. Any input would be appreciated.

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[barza21]

Update,

I disconnected the AFPR and hooked directly into the return side of the fuel rail. I started the pump and after about 5 seconds, no more bubbles appeared. it was a clean flow of fuel with no air. Now, I am not sure if what I am seeing out of the outlet side of the AFPR is normal or not. Any ideas or info is appreciated.

Thanks,

Oscar