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Discussion Starter · #1 ·
Check this out guys I have 99 gt vert every bolt on you can buy had a had a misfire code on number 5 cylinder it had a pretty bad miss but was never was hard to start and when on the freeway it was missing bad I could feel it surge sometimes like the cylinder caught and started working I changed the coil packs and plugs with new ones no change cleaned throttlebody no change changed injectors around to see if the missfire would change cylinder it dident replaced o2 sensors just because it was time. so I had 4 people look at it they were stumped well it started to idle real bad and was hard to start so I checked the forum to see some ideas and seen everyone talking about the iac valve being dirty causing the same problem I was having so I cleaned it now the miss is gone no more surge no nothing I don't see how cleaning that would fix all that but it did all and I did the egr deleat because of my long tubes wer not set up for egr
 

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yeah it's always the first place i recommend my customers to start when they have an idle or miss issue. that and cleaning the MAF does wonders.
 

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Discussion Starter · #3 ·
Hey six I'm having problems uploading my profile pic it keeps failing to upload its under what it said max was 170 kb and under it's only like 80 kb any help would be great thanks
 
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