Constant Misfire and O2 Codes

squirt

Well-known member
Nov 13, 2008
822
13
Los Angeles
It's going to be difficult to help you diagnose this without basic tools. What led you to replace the plugs, wires AND coils?
 

Chris Baker

Well-known member
Sep 12, 2019
49
0
Bolivar, Tn
It's going to be difficult to help you diagnose this without basic tools. What led you to replace the plugs, wires AND coils?
The misfiring is what led me to change the plugs, wires and coils.
The original motor had a cracked engine block. So I had to purchased a used engine. Been working the kinks out ever since.
 

Swedjen2

Well-known member
Sep 12, 2018
374
61
California
Get an OBD2 reader. Don't know which ones are in favor here at the moment though.
I have a $100 BlueDriver. It's O.K. for reading and clearing codes and shows live data.
 

pdxrovermech

Well-known member
Jul 3, 2009
1,712
19
Portland, OR
with faults for both LH and RH O2 sensors I would check the grey plug back behind your coolant reservoir. The O2 power feed runs through there and i've been running into a melted contact there. it will give you a good reading when testing with the plug disconnected, but as soon as you hook it up and run it the power will drop out.