I'm trying to find a device for meauring the fuel line pressure in the rail. I can't find anything that can hook to the relief valve. I see lots of mention of people do that but what are you using and where did you get it?

I'm trying to see if I'm running lean. I have really heavy knocking.

 

I bought my fuel pressure tester at autozone.
It was approx 30 bucks and came with the little schraeder valve adapter.

-Chris

 

Thanks, didn't see it at autozone but I'll ask them to see if they have it behind the counter.