MK I Tech
Car is an 02 Focus svt with 170k miles, stock intake, hks catback exhaust with some random non oem cat and i do not believe it has a tune on it.
List of Codes:
P0141 - Downstream Heated Oxygen Sensor Heater circuit fault - Bank No. 1
P0325 - A Spark Knock Occurred - Sensor Circuitry did not...