Hi guys,

I moved to 96260009 Tephra V5.10 last night, I know have the following problems.

Car starts and drives fine, but i keep throwing P0135 Oxgen Sensor Heater circuit Cel.

I am running this on a JDM 2003 evo 8 (EGR has been deleted).

Is there anyway of telling if I need a new sensor or if there is just something wrong with the rom?

Please help I have a race in 2 weeks and need to tune still.

Thanks

Dale

 

wow 41 views and knowone can offer input???

Any Gurus out their that can offer some advice?

 

What are your fuel trims/oxygen feedback trim at? Do they at least fluctuate?

Also just to do a side my side comparison to pin point something is wrong with the rom..i would do this.
1. take the negative battery terminal off for 5 minutes
2. reconnect the terminal
3. flash your old known rom that was on the car previous
4. drive around for a good 30mins off of boost

Now if the light comes on you know that its not the ROM its the sensor but if the light doesn't come on you have a hic-up in the rom. Also see if the trims are fluctuating.
This will at least help you pin point the problem.

 

Thanks, I will give that a go tonight. Im hoping its not the sensor.

 

it is easy enough to see if it is the sensor... put ur stock rom back on.

saying that i am pretty sure its the rom. as i remember someone else with a JDM8 having issues. not sure if a solution was found. if T510 is the only reason.... i am sure t510 came out for JDM8 rom.

 

why not flash it back to your original rom just to check. Make sure all your peripheries are correctly enabled/disabled.

 

how do i get the pheriphery option in 96260009 and my stock rom so I can check they are the same? is there a bit of xml I need to put in? if so what is it?

 

Does anyone know how I can get the necessary info for my XML so I can check this?

 

pm Tephra

 

Tephra mail box is full lol.

I only need a xml that has every table shown. I can work out the rest from there.

 

The O2 sensor will still work even with a failed heater circuit. This rom has been used on many JDM and EDM VIII's without CEL errors.