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I asked Doctronic today. The PRA is compatible with an aftermarket sensor. However, we must use the PRB codebase/mapping.
He recommends the AEM X-Series. I already ordered it
How do you know which ECU you have. The one I bought is regular without wideband. How do I make it a wideband? What all do I need to buy? Thank you
How do you know which ECU you have. The one I bought is regular without wideband. How do I make it a wideband? What all do I need to buy? Thank you
Sorry for the late reply. I didn't have time to finish this last year and even had to send back my order.
The type of ECU is written on a sticker on the ECU itself.
From I understand all we need it the AEM X series wideband sensor which we connect to the ECU.
I’m considering going with the Doctronic.
Anyone using this with success in 2025?
2003 s2k here on a US s2000 and this works very well. Almost like hondata software without changing anything else. If you do get this. Get the wifi module and if you have a spare android phone you can link them.
Can anyone with the 'AF subharness' option that is using an RSX type sensor (part no. 36531 PRB A01) tell me if I have mine set up correctly? I am not getting any AFR/Lambda readings but I am getting fuel trims and O2 voltage readings on primary and secondary.
I have a brand new OEM upstream sensor in the header, and it's plugged into the primary 02 connector above the transmission.
The original secondary 02 sensor I removed and the connection is left unplugged.
The 4 wire rsx sensor is in my test pipe and gets connected to this thing:
Those wires go into pins A1, A6, A16, and A22 according to a PRB pinout diagram. Then I am using this 12v ignition for power:
If 'use secondary 02 input as primary' is selected then:
-No AFR/Lambda readings
-CEL for secondary 02 heater circuit
-No fuel trims
-No primary 02 voltage, but there is S02 voltage
If 'use secondary 02 input as primary is NOT selected then:
-No AFR/Lambda readings
-No CEL
-Fuel trims are present
-There are P02 and S02 voltage readings, but they are both the same as if they are both narrowband