91 ls400 ported vacuum switch next to Iac valve??
02-04-07, 04:28 PM
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91 ls400 ported vacuum switch next to Iac valve??
Up in the front of the engine next to the iac valve is a blue vacuum switch with 2 small vacuum lines going to it. Does the top connection vacuum line go to the chrome lines coming from the manifold or around the side to the egr section? Thanks 
Nel
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porshapowe
LS - 1st and 2nd Gen (1990-2000)
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01-31-07 10:58 PM
