zojirushi

A few tri-state owners have gone to Bulldog Motorsports in Clifton NJ with good results.

http://www.bulldogmotorsportsllc.com/

zapa

I think we figured out what was causing my codes. On the o2 sensor wire extenders part of it was rubbing the header so when it would get hot it melted straight through

lobuxracer

iTrader: (2)

That's very bad for the ECM.

zapa

I know but i am hoping that i have not harmed anything else..

How would I know if I have messed up anything else??

ISFPOWER

iTrader: (20)

that would def do it, had that problem with a previous car.

Weapon F

Hey HighLow I had my PPE installed at AfterFX in CT great shop they nothing but highend work and I mean highend Lambos, Bentley GT, Porsche, Ferrari,McClarrens etc that being said they are not cheap but the work is impeccable. I also now have connection with Lexus of Larchmont, NY Ray Catena, I spoke to service Manager he use to work at Lexus of Greenwich but now work for Lexus of Larchmont and at that location they will install headers with no problem. I know head mechanic Walter and he does great work very knowledgeable guy into cars and is the only one that works on my F when I bring it to dealer. So if you want I can bring you to either shop let me know we can meet and I'll introduce you to them.

zapa

Well I just got all of the codes again... What could it be

Could I have damaged the ECM??

lobuxracer

iTrader: (2)

Fried power circuit for the O2 sensor heater in the ECM.

zapa

Would that mean I need a whole new ECM

lobuxracer

iTrader: (2)

Yes unless you know someone who will fix the burned out regulator in the ECM.

You should check the voltages before you do anything though. The heater circuit has specific voltages associated with it when it is operating. If it's not applying power to the heater circuit, the ECM will set a DTC and the sensor will not work at all.

PPEHeaders

iTrader: (4)

The ECU is pretty well protected internally against shorts like this. There is a fuse that controls the heater circuits which I am sure has blown. I am not sure on its location, but I would definitely check and replace next.

lobuxracer

iTrader: (2)

EFI 2 fuse is for the heater circuits on the secondary sensors. But there would be other issues, and it would not even start without a DTC if EFI 2 was dead. The main A/F also has a separate fuse.

I've seen the regulators die in other Toyota products. It's part of why I have a stack of Supra ECMs in my garage.

zapa

I dont know who to believe here. I respect both of their opinions. Once again my codes I got today were P0136, P0139 P0156 P0158. Some of which were pending.

LexISguy

Three years later and still enjoying the headers. Beside the exhaust any possible other goodies in the works?

MileHIFcar

Bump from the grave.......... did you ever find out what was causing the codes you got?? Was it what Lance had said or PPE? You never followed up with the solution?