PO 135 code 2005 Honda civic ex 1.7

Question

Check Engine light on code says PO135 I checked the fuses all good,, looked at the wiring looks good ,,
I replaced the Bank 1 LAF sensor, clear the code check engine light goes off then comes right back on same code

any help would be great

Answer 1

HI there,

This would indicate a possible problem with the cars computer. However check for vacuum leaks and exhaust leaks. They can effect sensor performance