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Join Date: Jul 2005
Location: Reno NV, Bay Area during most weeks,, Kids still in NH
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help with diagnosis

Ok guys, took out the 86 last night after not really driving it much since I got it out here.. Driving it cross country it was running really rich with black smoke coming out when I got on it... I've been meaning to get a LM-1 to see what my AFR was but haven't.. So last night I noticed that was wasn't gettting nearly the boost out of it ( like 0.2-0.3) and that was really stomping on it.. I"m thinking they two issues are related. What do you guys think ? Where should I start to look ? I'm thinking vacuum leak somewhere?? Control valve issue?
T
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"Todd"
98 Tahoe ,2007 Saturn Vue
86 930 black and stock, 80 930 blue tracdog
91 Spec Miata (yeah I race a chick car)
"life"ll kill ya" Warren Zevon
Old 03-09-2008, 01:45 PM
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I think you got a boost leak, try looking at rotted vacuum lines and other rubber things that seal off the plenum
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Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 03-10-2008, 12:58 PM
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that's what I was thinking too, just didn't know what woudl be the logical place to look first
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"Todd"
98 Tahoe ,2007 Saturn Vue
86 930 black and stock, 80 930 blue tracdog
91 Spec Miata (yeah I race a chick car)
"life"ll kill ya" Warren Zevon
Old 03-10-2008, 01:41 PM
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Do a boost leak test to her- that will give you some answers
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Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 03-10-2008, 06:58 PM
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