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gmc envoy_denali
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3 Posts
Discussion Starter #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
 

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2004 gmc envoy_slt
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2,385 Posts
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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gmc envoy_denali
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Discussion Starter #3
Its the under hood box,Havnt found any around here where im at Ive ordered 2 from ebay and both were the wrong ones when shipped to me.I figured as much Thank you for reply
 
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