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94 deville concours northstar catalytic converter redhot and stalls

2K views 3 replies 4 participants last post by  94CaddyConcours 
#1 ·
My caddy is having issues when you start it its ok untill it warms up then idles rough, stalls and the cat is glowing? I checked the codes and its saying map sensor. I replaced the the map sensor the idle control valve, tps sensor, catalytic converter and have no clue what it could be any ideas of the problem would be appreciated. Thanks !!
 
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