Discussion Starter · #1 ·
Hey I am new to this so I hope I am doing this right. Anyways I have a 06 700xp and have been dealing with a rough idle and rough running up through half speed. Runs fine from half speed to wide open. I have checked the wires to the TPS and TBAP sensors all seem to be fine. I also checked the setting of TPS and it was correct at .660. Also replaced plugs and wires. I hooked up fuel pressure gauge and I am getting constant 39 psi at half to wide open throttle but from idle to half throttle fuel pressure is very erratic jumping from around 32 psi to 42 psi and only jumping 2 to 3 pounds at idle. Curious as to whether I am having voltage drop to fuel pump or if pump is just bad. Any help is much appreciated!