Damn 4-4-3-1 code... ISV will be the death of me!
#3
isnt that also the code for a air leak
I was getting the egr code and I think the code for the isv(also large quantity air leak) and it turned out the the egr valve was sticky and the vacuum hose connection on the egr valve itself was not good so I manully acctuated the egr valve (blowing and sucking on the vacuum line) until I could here the valve working and then I replaced the vacuum hose with some high quality, smaller diameter stuff and POOF!!! codes begone!!!!!!
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