Exhaust Temp Light Stuck On

[BY55]

so if code 12 is air flow system, what should i do 1st ? disconnect the airflow socket ?

 

[joshuaho96]

On 6/8/2022 at 2:44 AM, BY55 said:

so if code 12 is air flow system, what should i do 1st ? disconnect the airflow socket ?

 

If you have an FCon V-Pro you can't use the factory ECU documentation as a reference. These are details that you have to mention if you want useful advice as the ECU controls the check engine light. The ECU can be used in both piggyback and standalone mode so it's hard to say what exactly is happening in your ECU.

[BK]

On 08/06/2022 at 7:14 PM, BY55 said:

what should i do 1st ?

Throw HKS ecu in the bin and fit proper engine management.

[Duncan]

So, you need to find out what error 12 is on an HKS FCon. It might be AFM or it might not. Documentation for them is hard to find except in Japanese so either talk to your local authorised HKS dealer if it was fit locally, or you need to try and contact HKS Japan.

Or even better, throw it in the bin, they were early but very proprietary, hard to find a tuner etc. You will need to replace it with another ECU and get a tune, lots of options from Nistune to PowerFC to Link/Haltech to a whole world of harder/non plug in options

[Dose Pipe Sutututu]

HKS ECU into the bin.

The time, money, life you waste trying to get that piece of shit to work properly. Just throw it into the bin, get a Haltech and enjoy life.

Remember time = money, the more time you burn getting that piece of shit to work the more money you burn and of course time.

[BY55]

Just uninstall the fcon v pro , it show 55 only .But 1st ignition on exhaust temp warning light still flashing , 2nd ignition it won’t show .really confuse .

[GTSBoy]

You have a non-stock, bastardised ECU setup. I'm pretty sure that we're going to struggle to work out why things change between having the Fcon plugged in or not.

Recommendations to throw the thing in the bin and install a proper ECU are the only sensible feedback you're likely to get.