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if your AFR at idle is out of whack then you can get code 43


best start by checking the operation of your O2 then your AFR throught the RPM Range

that rom you have is a stock 203 JDM rom,

anyway was the O2 sensor a New Honda one or new aftermarket one or 2nd hand ?

did you put in a new O2 sensor ?, and has the code come back after you replaced the sensor ?

comonly is due to a lazy O2 signal back to the ECU from the sensor. You may need to monitor the O2...

Disclaimer: The following is provided as a GUIDE ONLY, and neither myself nor Ozhonda take any responsibility for the outcomes of someone else doing the following. You follow these steps at your own...