P0300 - Multiple Misfire
P1129 - Closed loop fueling not achieved bank 2
P0152 - Oxygen Sensor Circuit high voltage bank 2 sensor 1
C1011 - Left front wheel speed sensor signal erratic performance

These codes came up at the same time, went inside to diagnose them and the Oreilys computer system came up with an "unknown".
C102B - right wheel speed sensor circuit
J1850 - Bus Open

Multiple cylinder misfire still draining my wallet.

What I have done is all spark plugs and coil packs.
No pressure loss afaik.

Would doing these help?
Clean EGR valve ( Can't find the correct thread).
Clean map sensor (Can't find the thread with it). Don't know where this or the above is even located!
Replace oxygen sensor as well

_________________
OME 2.75" lift. JBA UCA's.
Flowmaster super 44.
BoulderBars. Home built stubby.
31X10.5 Duratracs
Yukon / Motive Gear 4.10's
Aussie Locker. Safari Snorkel.
ARB Diff Guard
Soft 8 - X7 - 4" BS

Sorry but you can't diagnose anything on any vehicle inside of a parts store with the vehicle still in the parking lot.



You will need a scanner(a good 1) and start with the lowest code # 1st and go from there.

That sure was a ham fisted attempt at being funny.
I did have a scanner and went back inside to get print outs of what possible causes for each code are and there are dozens up dozens of "possible fixes" for each code.

_________________
OME 2.75" lift. JBA UCA's.
Flowmaster super 44.
BoulderBars. Home built stubby.
31X10.5 Duratracs
Yukon / Motive Gear 4.10's
Aussie Locker. Safari Snorkel.
ARB Diff Guard
Soft 8 - X7 - 4" BS

Well, I just did a quick google search for p1129 code.
Apparently its related to the O2 sensors.
Also, it seems that Bosch O2 sensors cause problems and that the correct replacments are NTK.

And those wheel speed sensor codes are probably related to the wheel speed sensors.
Sometimes the crack and get stuck in the hubs.

_________________
U.S. Army Retired

Find a friend that has a code reader, not a scanner.. Scanners are expensive as hell, I don't trust auto part stores at all.

In your case only, I would recommend clearing all the codes before doing any work. Go for a short drive, 5-10 miles (if it will), and see what actually pops back up. I've never seen something like that before.. Although the misfire and 02 ones are possibly related... You've got a huge mess of code there and I wanna see what's legit still a problem and what's not.

_________________
2004 KJ 3.7 Limited:
IRO WJ Upper Arm -- WJ Rear LCA's -- Rear Driveshaft Spacer -- JBA Upper A Arms -- 4 inch Lift -- 265/75/16 4" B/S -- WasherBottle Relocate -- Custom High Mount Intake -- Carpet Delete -- Homebrew Winch Bumper -- Warn VR8000 -- Homemade Plow -- Pinch Weld POUNDED -- POR 15 inner fenders --