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I need help with codes!!!!

470 views 1 reply 2 participants last post by  Ranger 
#1 ·
I need help with some codes:


410 secondary air injection system
412 air switching valve A
420 catalyst eff low
520 vehicle speed sensor low/no signal
 
#2 ·
420 - Your CAT is shot
520 - The VSS is shot or disconnected. it is accessed through the right wheel well and is mounted on top of the right output shaft housing.
412 - May be the cause of 410. There are two vacuum controlled check valves for the AIR system, one for each manifold. One of the switches controlling the valves is bad. Not sure which is A and which is B.

VSS


 
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