Recent content by AndyA

Here is a recent post I made regarding my Wranglerfix PCM: https://wranglertjforum.com/threads/o2-sensor-voltage.91438 Andy

I've been doing a bit of driving with my old PCM and it is so smooth on the idle and acceleration! Much nicer. So far no shuddering and no codes. Also no hard shifting into second like before when I used it (?!). I talked to Jay at Wranglerfix and it would be $270 for diagnostic and repair of...

NGK - NAPA Andy

Timeline: July 5th 2023 - replaced the PCM January 17th 2024 - replaced all four O2 sensors due to P0133 January 4th 2026 - replaced 1/1 O2 sensor again due to intermittent P0133 June 2026 - intermittent violent shaking started, P0300, P0172 along with P0133

It is a Wranglerfix PCM. I might put my old one back in to compare. Andy

I think the problem I have is transient - bank one goes into a strange state then back out of it again. Lots of misfires.

With ignition on and fully warm, sensor 1/1 is toggling between 0.1V and 0.88V. 2/1 is toggling between 0.1V and 0.8V. However 1/2 is fairly static at 0.12V and 2/2 is fairly static at 0.61V to 0.76V. Seems strange that the two banks are giving different readings? The O2S voltages are 1/1 is...

With ignition on, the voltage on the K41 PCM pin is 3.3V and drops over about a minute to 2.2V. Andy

For the last few years I have been fighting constant problems with B1S1 O2 sensor. P0133. I replaced all four O2 sensors with new NTK and then replaced B1S1 again with new NTK. I learned to live with the MIL coming on and going off. Recently I have started getting P0172 and P0300 with violent...

Thanks. I just checked and they are still torqued to 45 ft-lbs per the FSM so this must be how I installed them. Do I go higher on the torque? Andy

I installed the front stabilizer bar a couple of years ago, following the FSM and torquing it as required. Now that I look at it, should the rubber boot at the top of the link be pulled up to the bar? Regardless of the torque need? Thanks, Andy

As soon as I plugged in the OBDII reader to look at live data the engine started behaving. I told ChatGPT and this was its response. :ROFLMAO: Andy

So you don't think this is a stock bump stop? How long is the stock version? Andy

What do you mean larger? As in longer? The stock springs are 12" and 8" tall so measure them. Mine are 11" and 7" so I know they have sagged. Andy

I am definitely hitting the bump stops - do the same test I did with the grease and see. I am going to put in new springs and also replace the rear trackbar. So far I have done the following: New front track bar New front and rear sway bars New shocks New control arms New tires In general...