I replaced the upper intake plenum on my '01 - 4.6L. The install went smooth no real issues. However when I went to test it out I had a real problem; I can start the engine no problem, she idles fine but when I push the peddle she dies. Like it's getting no gas. Restart, great idle, but dies as soon as I open the throttle. I have checked and rechecked all my wires and hoses. Everything is attached, tightened, and connected. Yes, she ran fine before the swap.
I suspect the TPS went bad? I don't know how to get the codes w/o the code reader so I'm guessing. I metered the TPS but got a dead short across all 3 pins. But of course my meter picked tonight to act up so I don't necessarily trust that reading.
I don't know how it could have as all i did was swap the old plenum for the new one. The only thing extra I did was blend/flare the throttle body area, behind the throttle plate, to the plenum opening size using conical sanding disks and my die grinder.
Maybe the vibration broke it?
Any help is appreciated.
Thanks,
Jay
I suspect the TPS went bad? I don't know how to get the codes w/o the code reader so I'm guessing. I metered the TPS but got a dead short across all 3 pins. But of course my meter picked tonight to act up so I don't necessarily trust that reading.
I don't know how it could have as all i did was swap the old plenum for the new one. The only thing extra I did was blend/flare the throttle body area, behind the throttle plate, to the plenum opening size using conical sanding disks and my die grinder.
Maybe the vibration broke it?
Any help is appreciated.
Thanks,
Jay