View Single Post
T77911S T77911S is offline
Registered User
 
T77911S's Avatar
 
Join Date: Oct 2006
Location: MYR S.C.
Posts: 10,191
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:
90 B2200[__] RUNNING:[] NOT RUNNING:__2000 MER E320 WAGON [] WRECKED:[]RUNNING:
Old 08-06-2014, 03:05 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #20 (permalink)