my 2000 ram 1500 5.2l 4x4 , which I just replaced the transmission 2000 miles ago with much help from this forum, is bucking and knocking when I try to climb hills and also started throwing the code p0463(fuel sensor input high?) . It also shows p0132 which is the upstream o2 sensor that I disconnected over a year ago but was unable to remove from the ypipe so I just run without it which hasn't seemed to cause any issues other than the check engine light being on. I can't seem to figure out what to do about the fuel sensor code and the trouble on hills. Any help would be greatly appreciated!

 

That's fuel level sensor. (the float in the tank for the gas gauge.) That has nothing to do with the way your truck runs, unless you are getting an over-voltage situation, in which case, that will affect anything electronic, and thoroughly confuse the PCM.

When it is bucking and knocking, does the CEL flash at you??

 

No nothing flashes, and I would have to say it's more of a popping noise. It happened a few more times yesterday and it almost seems like it's either not getting gas for a second or maybe getting choked out with too rich a mixture cause I could smell the exhaust one time after it happened. Or Could the timing be off? I've never changed the distributor since I've owned the truck as it is so hard to get too

 

Probably wouldn't hurt to start with a tune-up then. Cap, rotor, wires, plugs.

Timing is totally controlled by the PCM, turning the distributor only changes injector timing.

Start with the tune-up, and see if anything changes.

 

I did the plugs and wires a year ago just not the distributor

 

Have a look, see what ya think, take it from there.

I know on my 96, my plugs would get pretty fouled in a year.... but, I had massive oil consumption troubles, even after fixing the plenum.

 

So I realized today that it only does it when the truck isn't warmed up (Ben running less than 10 min)after it's been driving a while it runs great. It was doing a similar thing a year ago before I disconnected the bad o2 sensor

 

May be as simple as a failing sensor. Do you have access to a scanner that can read real-time data?

 

I don't have one but since the last time I posted I think I have it figured out... maybe. The upstream o2 sensor is disconnected and has been for almost a year. The problem only occurs in the 1st 10 min of driving and at that time the truck is also running really rich. I can smell the exhaust and even see some smoke outta the tailpipe. I had the same problem but much much worse before I disconnected the sensor( the truck would not even drive unless it idled for at least 5-10 min after starting it even if it was warm). I think that maybe if I put a new o2 in it could solve the problem. Only thing is the old sensor will not budge. I even tried to get it out when I had the entire exhaust off the truck to install the transmission. I'm thinking I could drill a hole in the ypipe next to the stuck sensor and weld a nut too it that I could screw the new sensor into. I haven't done it yet because I have no means to weld anything though

 

Chemicals, a large pipe wrench, and a hammer will get the old one out.