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T77911S T77911S is offline
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Join Date: Oct 2006
Location: MYR S.C.
Posts: 11,170
my thorttle switch was causing my idle to hang sometimes. it would also make the idle return to different RPM's. i removed it.

timing can make the idle too high.

air leaks. water the engine down really good. around all the intake ports. it wont isolate a leak but it wil let you know if you have one. if wastegate is original, check it too. also all the IC connections/turbo.

i would fix the idle problem first. like me, if you have air leaks, doing all that testing of AFR's is meaningless if you have an air leak.

i have 2 sets of brand new gauges. they read .4bar different for system pressure. they read the same for control pressure. dont buy cheap gauges. (i did not think mine were cheap)
86 930 42kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
05 BMW 330CI 130K:: [__] RUNNING: [__] NOT RUNNING:
08 VOLVO V70 190K:: [__] RUNNING: [__] NOT RUNNING:
Old 08-06-2014, 04:05 AM
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