Ck Engine Light Problem
#1
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Ck Engine Light Problem
Hey guys
yesterday i installed my pacesetter LTs and made my exhaust a true dual set up with this with no cats
i also installed my nelson tune which i was really excited about
the problem: ck engine light is on but when using the snap-on scan tool that my dad has used for years on customers cars is not reading when plugged in. he is concerned it is the tune. i unplugged the battery and the ck engine light came on again after less than 20 miles. any help would be greatly appreciated
ps i ordered my tune and exhaust the same day and informed nelson performance that i was removing my cats is this maybe the lack of rear o2 sensors, did they not delete them in the tune? why cant the scan tool talk to my truck?
thanks for any help
yesterday i installed my pacesetter LTs and made my exhaust a true dual set up with this with no cats
i also installed my nelson tune which i was really excited about
the problem: ck engine light is on but when using the snap-on scan tool that my dad has used for years on customers cars is not reading when plugged in. he is concerned it is the tune. i unplugged the battery and the ck engine light came on again after less than 20 miles. any help would be greatly appreciated
ps i ordered my tune and exhaust the same day and informed nelson performance that i was removing my cats is this maybe the lack of rear o2 sensors, did they not delete them in the tune? why cant the scan tool talk to my truck?
thanks for any help
#2
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If the light is on the scan tool should pick it up, and if the light is on there is a code. Not sure why its not reading it. Try going to a local parts store that will read codes. Auto Zone, Advance Auto etc. See if their's will read it. Also in my expirence rear 02 sensors will not throw a code for a couple drive cycles.
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but y isnt my scan tool picking it up we thought it was the scan tool acting up but we hooked it up to a customers car at my dads shop after it didnt work on my truck and that worked and then we tried again on my truck and it didnt work
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Originally Posted by 03sierraslt
If the light is on the scan tool should pick it up, and if the light is on there is a code.
#7
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ive been told that if the cigarette lighter does not work (the fuse is blown) then the ck engine light will not come on in some cars is this true with these trucks? i checked the ECM fuse under the hood cuz i was told that is the cigarette lighter fuse and that is not blown am i looking at the right fuse?