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po 404 /405 issues

lostscout

lostscout

New member
anyone got any ideas...since my previous difficulties, I am getting a constant po404/405 code.....:th_scratchhead: valve is new...ish about 500 miles
 
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check the wires to the egr, they maybe damaged,. cracks, missing insulation will cause those codes. or the egr is bad.
 
When you list a code, please list the name. It helps us out by not having to look it up for you. I get the impression that some folks are lazy and don't research and issue...they post and figure someone else will do the work.

Check the 5 volt and ground references
 


or just leave the egr and delete the codes. what i did to my car. sick of it popping up from time to time, same for the evap. deleted, in all i got like 12 deleted codes lol
 
i have a dhp tuner, with a tuner program and hardware you cant set the codes to not report. and they show ready on a obd2 scan at inspection.
 
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