E46Fanatics - View Single Post - P1188, P1189, etc Codes Fixed Easily (1 Oil Separator Hose) (*Pics*)
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Old 11-24-2013, 01:43 PM   #90
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Join Date: Nov 2013
Location: at Large
Posts: 5
My Ride: e32,e39
Updating my previous post above. Another cool Florida morning (50's F) -- low idle surges remain and codes are back:

P0170 fuel trim bank 1
P0173 fuel trim bank 2
P1188 fuel air meter
P1189 fuel air meter
P0305 Cyl 5 misfire
P0306 Cyl 6 misfire

I believe the misfire codes only appear if the car sits and idles with low surges before it is warmed up.

I thought the CCV to dipstick hose may have fixed P1188 and P1199 but they are back. Onward with more vacuum leak hunting... I ordered an intake boot (elbow is prone to leak) and will replace that when I do my idlers / alternator / and OFH gasket next week. Original CCV / DISA / VANOS at 121k but no failure symptoms.
99 540iT
00 528i/5
93 740i (Sold)
00 740iL (R.I.P.)

Last edited by ndz; 11-25-2013 at 03:36 PM.
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