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Check engine light

1K views 2 replies 2 participants last post by  jbeasley60 
#1 ·
Hi all I have an 06 envoy denali check engine light is on for the vent valve and purge valve,I replaced both wasnt that truck runs fine.I took it i to the shop they are saying its the fuse box and want 1100 to fix I dont have the cash as of now and need to get emissions.How can I get the light off, The scanner wont reset it,Ive uhooked the battery for an hour still nothing I need it off for emissions then Ill get it fixed.Any help would be greatly appreciated
 
#2 ·
There's no way to fool the PCM into thinking that a detected problem isn't there anymore. The only possible way is to have the PCM tune reprogrammed to ignore the fault, but I doubt you can find someone to do that.

If it's really the fuse box (you need to find out which one, underhood or rear seat) and then find one at a salvage yard.
 
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