E34 1992 535i M30
Ok so I hooked up a pressure gauge to my fuel line today.
I got with vacum line looked up to FPR...
39 PSI @ idle
I got with vacum line disconnected from idle...
Approx. 53 PSI @ idle
With vacum line hooked up and car in park, I give it gas/rev it up and it goes up to
53 PSI holds till I let off gas and goes back down to 39 PSI
So can someone tell me if this seems wrong. I did some research I thought with more vacum applied, such as when I rev the motor or the throttle opens, the PSI should drop because of increased vacum to the FPR. Can someone help me understand this as I have already order a new Fuel Pressure Regulator...
Ok so I hooked up a pressure gauge to my fuel line today.
I got with vacum line looked up to FPR...
39 PSI @ idle
I got with vacum line disconnected from idle...
Approx. 53 PSI @ idle
With vacum line hooked up and car in park, I give it gas/rev it up and it goes up to
53 PSI holds till I let off gas and goes back down to 39 PSI
So can someone tell me if this seems wrong. I did some research I thought with more vacum applied, such as when I rev the motor or the throttle opens, the PSI should drop because of increased vacum to the FPR. Can someone help me understand this as I have already order a new Fuel Pressure Regulator...