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Cobra Forums
The Terminator
Engine/Tuning
KB guys...bypass valve question.
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<blockquote data-quote="redfr03svtsnake" data-source="post: 10507790" data-attributes="member: 45214"><p>Is the problem low vac or is it a vac leak cuz if there is not enough vac due to another issue ( in my case iac being faulty) the bypass valve will not stay in the default idle position. My car for whatever reason is only getting ~11" vac but my valve is staying open, however since the iac isn't allowing enough fresh Air past the tb my car is starving for air @ idle, it has to be set at 1050rpm to keep it running. I guess what im asking to make sure that its a vac leak thats causing low vac not something else...The only reason I suspect the iac is that my pcv hose is getting crushed, meaning that the normal source of fresh air is not there and it's trying to breathe via the pcv. The reason I'm asking you this is cuz according to Kenne bell you need at least 10-12"vac to open the byPass. Obviously it's not opening or closing properly but it might not be functioning properly due to the low vac.... Hope this at least sheds a Lil light on it or maybe a thing to check</p></blockquote><p></p>
[QUOTE="redfr03svtsnake, post: 10507790, member: 45214"] Is the problem low vac or is it a vac leak cuz if there is not enough vac due to another issue ( in my case iac being faulty) the bypass valve will not stay in the default idle position. My car for whatever reason is only getting ~11" vac but my valve is staying open, however since the iac isn't allowing enough fresh Air past the tb my car is starving for air @ idle, it has to be set at 1050rpm to keep it running. I guess what im asking to make sure that its a vac leak thats causing low vac not something else...The only reason I suspect the iac is that my pcv hose is getting crushed, meaning that the normal source of fresh air is not there and it's trying to breathe via the pcv. The reason I'm asking you this is cuz according to Kenne bell you need at least 10-12"vac to open the byPass. Obviously it's not opening or closing properly but it might not be functioning properly due to the low vac.... Hope this at least sheds a Lil light on it or maybe a thing to check [/QUOTE]
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KB guys...bypass valve question.
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