engine light coming and going.

Question

I have honda accord 2007, 209,xxxkm. since few days engine light coming and going. I had done computer test its give me 41-05 (p0135) HO2S (A/F SENSOR) S1 HEATER CIRCUIT MALFUNCTION. if this part is out of order why sometime engine light went off . Please guide me what to do. is there any issue of ECM

Answer 1

P0135 A/F ratio sensor 1 heater circuit malfunction

The CK ENG LT comes on intermittently ? and set a P0135 . The solution is to replace the A/F sensor, what usually fails on the A/F sensor is mostly the heater circuit, If the CK ENG LT is setting and not setting you have a intermittent condition with the A/F sensor. What the ECM does is look for open circuit short circuits and grounds these code right away. . P0135 is just that intermittent works and intermittent does not work