So everything tested great except for the Co readings which turned out to be 30 over 20. Got a code 32 for the EGR valve but ive replaced it and vacuum and everything is working fine. how can i reduse the CO reading? done new plugs and wires with cap and rotor also new air filter oil ext..... alot of people have told me new o2 sensors or even an MAF but a little other idea's might help before i blow the cash i dont have,

 

timing