its throwing a engine code 74 i dont know what it is can anyone help. thanks

 

74 - random misfire cylinder 4

 

what would cause that? and how do i fix it? thanx

 

check plug / compression test cyl 4

 

do you know what check engine 65 is. thanks

 

65 Secondary oxygen sensor heater

 

https://honda-tech.com/zerothread?id=978933

for any future reference

 

what would cause that to happen. thanks

 

Code 65 comes on because the heater element in the O2 sensor took a ****. To confirm, use a multi-meter and measure the resistance between the two black wires (unplug the O2 sensor from the main engine harness first) - should be 15-40 ohms.

 

the light is on, how do i find out which code??
thanx