Fuel pressure at idle

What should the fuel pressure fluctuate around when idle is set at 850 and car is warm? I can’t remember what mine was but now it fluctuates from 400-700 psi. I just want to know so if i have to start checking things i have an idea of where to start. Thanks.

 

Your good. Log to make sure you aren't getting quick drops

 

Sounds pretty normal based on my car as well. Did you see any drops from logs?

 

In the tuning process now and he said everything looks normal so i guess im just overthinking or paranoid.

 

Fuel pressure at idle, if everything is mechanically solid will vary based on ECT. the colder the coolant temp, the higher the idle hpfp pressure

 

What is normal fuel pressure between gears and on deceleration? I’ve been seeing 292psi when reving up the engine and rapidly letting of the throttle from an idle. Mid 200 between shifts and sometimes deceleration.

 

That's pretty normal since the injectors are deactivated on decel when in gear. I'll see lows in that range especially when clutching in after engine braking.

 

Just replaced my prv and noticed black on the top and inside. I wonder if thats normal or if the previous owners ran ethanol.