I am beginning to dislike sensors to a degree I thought impossible.
So it is time to look for hacks.

#1 Tpms on a 2006 ls430. Contacted my local dealer yesterday searching for a replacements. Did not hear back.
Question, I have read that the sensors are in conjunction with the abs?
So is it impossible to get around this?

#2 o2 sensors. Replaced the number one bank sensor a few years back. A full on royal pita. Now the left bank reads bad if I ever put in regular or sometimes premium that may be past it due to bad storage or lack of turnover. Is there a hack to defeat this sensor? I am not located in a deq zone.

Thanks guys for any data that is fresh. I did a search here and on the web to little or no avail.

 

The TPMS system doesn't use pressure sensors in the wheels, it uses the ABS wheel speed sensors to calculate the diameter of the tire to calculate tire pressure. Trying to delete or "defeat" the primary oxygen sensors is like trying to delete the MAF. The oxygen sensors are vital for closed loop fuel control, don't cheap out, buy genuine toyota sensors from a dealer.

 

There are no tyre pressure sensors. It uses the ABS wheel sensors to calculate the rolling radius of the tyre. When the tyre deflates, the rolling radius decreases.
For the Tyre pressures, go around and set all 4 tyres to the correct pressures.
Once done, press and hold the Reset button under the dash next to the ODB2 connector until the dash shows that it has been reset.
Then go for a 50-60 mile drive so that the system can learn the new tyre pressures and forget about it.
If you have a slow puncture, get it fixed, then do the procedure above.

For the O2 sensors, they are now 19 years old. Nothing lasts forever so they will need to be replaced when they die.
As said above, buy good quality Denso sensors and they are good for another 10+ years.
I had one go about a year after I bought my LS. Cost me $100 for the sensor and $200 for a mechanic to fit it.
Defeating an O2 sensor on a closed loop system like the LS430 is going to reduce power and performance, and probably reliability.

 

The only hack would be to either get a car that was made before all these sensors were used or a brand new car that has a warranty. Replace what goes bad with quality parts and go another 20yrs without worrying about it.

 

I'll do that! The tire pressures are checked each week or two but I had not gone on a long enough spin to maybe reset it?
It is uncanny that at 15~ miles it goes off.
So procedure is.
Set pressure in tires at 34 lbs.
Press the reset button under the dash.
Drive for 50 miles or so.
Is that right?

Thanks!

 

Yes, but press and hold the Reset button until it beeps and the dash shows "Resetting Tire Pressures" or something like that.

 

I use nitro in all my tires. Got 5-10% better fuel economy with nitro, pressures are more consistent with temp. I like to run 36 ish psi and only check it every couple of months. Pressure is very consistent.

 

Your having multiple sensor issues check the alternator or battery these cars get wonky when the voltage gets low in them.

 

A 7 to 10 sec press and "Tps initialized" shows up.
Whalla! Previously I just pressed it until the warning went away.....Thanks
.

 

That's the message. :-)
Now it needs 60 miles of driving before the system is fully initialised. That's when it "learns" the rolling radius of all the tyres.

 

So I reset and yeah - it came back - even after topping off tires with air - and I did this 2 times - at a 160k miles I suspect TPMS system is bad (wheel sensor) or someone suggested a battery? But my main battery is new and 8 months old - bought in Feb.
So are there TPMS sensors in the tires or just the wheel sensors? ( new to LS430 ) Thx

 

The tpms is based of the abs.

 

so the ABS is the wheel sensor?
And is this also done by the sensor on the transmission?

 

Already explained a few posts up.

Are all your tires matching (size, age, manufacturer, etc)?

 

When you reset the TPMS you need to hold the reset button until it beeps and the dash says "Initialising". Once done it won't detect a pressure loss for 50 miles while it learns the new rolling radius of each tyre. If the message shows immediately you didn't reset it.