i'm driving 1.8gsr.. i have an apexi pen timer in my car, the reading of AFR is 20.0 (blinking) and most of the time the voltage reading is below 13.0 while cruising (ard 12.5 ~ 12.9).. my battery just replaced last 3 mths..
any idea whr goes wrong and wat to chk?
thanks..
DC!
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