I keep telling myself I need to take the time to learn how to read fuel trims! I get no codes, but I know my engine could run smoother!

 

Yeah Man,,, me too... I am thinking I need to change the other upper as I am getting differences in readings (as if I know what they mean in ANY depth) from banks 1 and 2. There must be something the the age of a sensor and it's reporting data... I wonder how much of a difference it makes if the fueling and air is being treated with significant difference from bank to bank.

 

Here's some light reading for you both in this thread started by H2Oboy. It contains two papers by xjrguy and there's even a quiz

https://www.jaguarforums.com/forum/g...17/#post304460

@Jay, they are considered 'wear items' so where one has gone, the other will surely follow.

 

Good Morning, Michael. As always, thank you.

I'll read for sure - I hate tests, lol
I'll replace the other two... the lowers, due to where they are situated in the exhausts, PO mods, they HAD to have seen water. The upper on the driver's RH side I'll replace as well.

As usual, being hasty, I am sure I made a mistake. The car was still hot when I installed the 2 new sensors. One RH upstream and one downstream on the LH side. I didn't do a hard reset and started the car,,, have been driving. Not such a good idea I think.

I drove the car on the highway into Brooklyn yesterday. Got off the freeway and ended up in stop and go traffic. The car, only at idle - which may have been the only time I could actually feel it - was stumbling and running a bit rough, at moments... There were significant value differences in the trims. Drove this morning and on the OBD the trims seemed a little better (closer in value bank 1 bank 2, and no stumbling or rough idle). I think a hard reset may be a good idea.

I'll also check plugs and for oil in the plug/coil wells.
This thing! Still, I am happy.

 

So! That's about everything,,,, NOT...

I been driving the ol beast quite a bit and am very excited about everything with this car...

Recently replaced or rejuvenated all but one of the HVAC Climate control flap actuators... A deep dive into the dash with lots of cursing and strange body language. Now, all flaps are flapping - just the cool air blend flap (HVAC code 43) not flapping... Well, it's winter. HI ! It is. That last servo is deep in there. I'll get it.

What's left.... Worst, hard to figure out and most headache-E... More research needed BUT the ECU doesn't seem to ground the relay to signal the starter to spin and start car. Here,,, a remote trigger wired into the cabin solves that. Works like a charm. I can live with it for now. What choice do I have?

Next worse. In the flood and after the car sat for a loooong stretch with a transmission full of water. I drained, refilled, drained rinse and repeat x6 til clear. Changed separator plate and solenoids, plug/connector orings. All good EXCEPT,,, rough (but getting better 1-2, 2-1 shift and a little bit of pulsing between 3 and 4 I think. But getting slowly better over time. I've read both issues to be a problem with the 6hp26

Seat controls. Never even cared to deal with this yet, but it's on the list!

Other than that, all systems normal....
Onwards, lol