Vac Leak? or other?
#1
Vac Leak? or other?
Ok, after searching out a few other threads, I always hate to start another one................
My 2001 F150 4.6 4x4, has a really bad rough idle, loss of power. Using Autoenginuity software, bank 2 senor 2 is showing a constant .92 voltage, the others seem normal at .2 to .7.
At first, when I bought the truck, it needed a Fuel Pressure reg. the idle air was clogged, cleaned the port & replaced the valve. Tried a new O2 sensor in B2S2, but no change. vacuum gage at the intake indicates "retarded engine timing". Also cleaned the throttle body & Mass air units.
Any help would be appreciated.
Thanks,
NT
My 2001 F150 4.6 4x4, has a really bad rough idle, loss of power. Using Autoenginuity software, bank 2 senor 2 is showing a constant .92 voltage, the others seem normal at .2 to .7.
At first, when I bought the truck, it needed a Fuel Pressure reg. the idle air was clogged, cleaned the port & replaced the valve. Tried a new O2 sensor in B2S2, but no change. vacuum gage at the intake indicates "retarded engine timing". Also cleaned the throttle body & Mass air units.
Any help would be appreciated.
Thanks,
NT
#2
#4
Thanks for the responses,
I thought about the wiring, I have checked as much a I can, but don't see anything abnormal.
The Autoenginuity tells me there is no misfire, The PVC line hose was getting soft, so I put a new Ford OEM unit on.
How can I tell if the Cat is clogged? This truck has 4 cats, the rear cats have the O2 sensors in them.
Thanks,NT
I thought about the wiring, I have checked as much a I can, but don't see anything abnormal.
The Autoenginuity tells me there is no misfire, The PVC line hose was getting soft, so I put a new Ford OEM unit on.
How can I tell if the Cat is clogged? This truck has 4 cats, the rear cats have the O2 sensors in them.
Thanks,NT
#5
Join Date: Oct 2002
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The Autoenginuity tells me there is no misfire,
This truck has 4 cats, the rear cats have the O2 sensors in them.
How can I tell if the Cat is clogged?
#6