ok im having a fuel problem or some thing...my truck (dak 3.9 4x4 sport 5 speed) when driving it will start bogging like its starving for fuel any thing over quarter throttle or 1500 rpms. this started a week after i replaced plenum gasket and timing set and o2 censor along with a code for o2 voltage high. it all so got hard to start so i replaced o2 again with correct unit and installed a new fuel pump and all was well for about a 100 miles and now its bogging out again same as before....also when it does this there is know sputtering or popping just boggs and does not respond if you give more throttle but if u let off and let it idle for a second it recovers and lets you accelerate again,,,thanks for any help

 

Any more codes?
Wont hurt to clean IAC an look at an test TPS .
Hopefully the 02 is Mopar. .
These trucks dont do well with aftermarket sensors AT ALL

 

Fuel injectors may be seeking a trash can. How many miles?

If you can, plumb up a fuel pressure gauge where you can see it while driving with the hood closed. See what the pressure does when it bogs.

Could also be a voltage issue, but unlikely.

And what about ignition coil/cap/rotor?

 

on;y other code its thrown was for a misfire in cylinder2..it has a 145000 miles the plugs cap and wires have less than 8000 miles on them ..and it does hav a accel coil that was installed by previous owner ...i also have a new mopar crank and cam sensors just never installed...as for fuel pressure i could not find mine and had to order a new one as local auto parts store didnt have one in stock

 

o forgot tometion the tps says its at 15% at idle and only 75% when wide open dont know if this is good or bad

 

How many miles on the fuel pump? Pulling good vacuum?

 

symptoms also seem to fit a clogged or restricted cat converter. Has it been replaced before?

 

fuel pump has about a 100 miles it just replacecd it friday...also truck has no cat on it

 

When you say" new mopar parts- cam an crank sensors- just never installed -"
As in- your using old ones or aftermarket sensors?
Install the mopars to rule those out ..
They can factor misfire .on 2nd cyl .
Is tps an iac original? Gunk in IAC can effect it a lot!
I get a reading of around 12.2 ish at idle on tps via diagnostic tool.

No cat? Hmmmm.

 

yes still has what ever censors were in it when i bought truck...the tps censor is about 2 months old not sure the brand i picked up a fuel pressure tester on my way to work last night so i can atleast see if it is a pressure problem but wont be able to check when driving as if it it starts stalling out worse i wont be able to get it up the mountain to house .....thanks for all the advice so far