DoHwan

Ok. here's the problem.
I got a new set of tpms sensors. I had lexus program them into my car. My dash said low tire (which means the sensors work right?).
I built the pipe bomb with all four sensors in it just like the DIY with the poly fill. The dash still says low tire. I pump air into the bomb and now the dash says check system. I checked for leaks and there are none. I tried to initialize the system with the 37 lbs of pressure but it does not work. I tried driving around for 30 mins and still check system light is still on. I took all the air out of the pipe bomb and then it just goes to low tire.
Please someone help me on fixing this. It's driving me nuts.

DoHwan

oh yeah I know everyone likes pics and so here's the pipe

There it is.
However it doesn't work

nmpeter

iTrader: (15)

Just to clear things up, there are no leaks so the pipe bomb holds the 35 PSI i think it is that you need?

iialcii

iTrader: (3)

sounds like everything is ok, you have the correct setting on right? 1st wheel set or 2nd?

i had the same problem before when i switched wheels, but mine was the setting

DoHwan

setting is set and I did the initialize with the psi set at 37. I just get a check system light though.

acefalcon2

iTrader: (20)

it's not the low pressure sign right???? you might what else did you do to the car... it might be some other sensors... the TPMS will light up the check pressure light not the Check Engine Light and VSC....

vuiskool

Try a lower pressure than 37

DoHwan

yeah it's not the check engine it's the check pressure one. the one that has the ! mark and says low tire.

I also tried to set it to a lower pressure but still the same problem.
I tried to initialize it at 30 psi but the dash just says low tire after the initialization is done.

DoHwan

ok finally figured it out. ONE of the sensors were bad. So everyone who's doing this mod MAKE SURE that the sensors ALL work. The stupid tire shops butcher the sensors and so I guess the slightest tap on the sensors makes it all wacked up. Also another thing is make sure that you do the initial pressure setup before a day passes or else it could just get everything stuck.

I actually recommend you write down all the Id's down and make the tpms pipe and THEN go down to get them programmed into your car. Hope that helps other people who're trying to do this thing.