missfire

I bought my 02 X 4x4 about a month ago and have done a few things to it such as trans fluid, filter change, cooler add-on, rear diff oil change, rear shocks, new slotted and drilled rotors, ceramic pads, etc. The issues I have are as follows. First off I have a very slight miss that is only...

OK, so two weekends ago I went through the grueling task of replacing the knock sensor on my 2002 X. It took the better part of the day and all of my will to get the project completed. Started it up and my ODB2 gave me a throttle positioning sensor code, turned out I didn't have it completely...

2002 Xterra XE, 3.3L, 4x4 Last 4 months w/ bad miss-firing & engine running rough... very random, at idle, on highway - esp. ~ 60+mph - car is bucking... very intermittent fine for a while then bad.. worse on hills, used to be able to fight through it driving RPMs up, but worse now... SES...