The BMW UUC Digest Volume 3 : Issue 623 : "text" Format Messages in this Issue: Re: Need help interpreting OBD-II codes Re: Need help interpreting OBD-II codes
---------------------------------------------------------------------- Date: Fri, 23 Nov 2007 10:37:30 -0500 From: Neil Maller <[EMAIL PROTECTED]> To: "bmwuucdigest@uucdigest.com" <bmwuucdigest@uucdigest.com> Subject: Re: Need help interpreting OBD-II codes Message-ID: <[EMAIL PROTECTED]> on 11/22/07 6:20 PM, "Jon Siccardi - Treehouse Racing" <[EMAIL PROTECTED]> wrote: > When you get LT FT bank 1 and 2 after a reassemble, make SURE that you do > not have the O2 sensors hooked up in reverse(bank1/bank 2) This is a common > error and the codes you pulled are likely for this type of problem. Hah - BTDT! The forward connector at the head is for the rear bank of cylinders (4-6) and vice-versa. Not what you'd necessarily expect. If you get it wrong very odd things ensue. The ECU tries to adjust fuel trim for a given cylinder bank but doesn't get the expected result (since it's monitoring the other bank), so then it adjusts some more, and so on. The result is that with the ECU memory cleared the car runs decently, but the more you drive the worse it gets, until it's throwing CE lights all over the place. Neil Fort Wayne, IN 96 M3 - Bastard child 03 525iT - Sterling Grey Metallic 05 Mini - Cooper S with LSD ------------------------------ Date: Fri, 23 Nov 2007 20:41:45 -0600 From: "Jon Siccardi - Treehouse Racing" <[EMAIL PROTECTED]> To: <bmwuucdigest@uucdigest.com> Subject: Re: Need help interpreting OBD-II codes Message-ID: <[EMAIL PROTECTED]> yup. ______________________________________________ Jon Siccardi - DM #053 TreehouseRacing.com M50conversion.com 615.333.9118 ______________________________________________ ----- Original Message ----- From: "Neil Maller" <[EMAIL PROTECTED]> To: <bmwuucdigest@uucdigest.com> Sent: Friday, November 23, 2007 9:37 AM Subject: Re: [UUC] Need help interpreting OBD-II codes > on 11/22/07 6:20 PM, "Jon Siccardi - Treehouse Racing" > <[EMAIL PROTECTED]> wrote: > >> When you get LT FT bank 1 and 2 after a reassemble, make SURE that you do >> not have the O2 sensors hooked up in reverse(bank1/bank 2) This is a >> common >> error and the codes you pulled are likely for this type of problem. > > Hah - BTDT! The forward connector at the head is for the rear bank of > cylinders (4-6) and vice-versa. Not what you'd necessarily expect. > > If you get it wrong very odd things ensue. The ECU tries to adjust fuel > trim > for a given cylinder bank but doesn't get the expected result (since it's > monitoring the other bank), so then it adjusts some more, and so on. > > The result is that with the ECU memory cleared the car runs decently, but > the more you drive the worse it gets, until it's throwing CE lights all > over > the place. > > Neil > Fort Wayne, IN > 96 M3 - Bastard child > 03 525iT - Sterling Grey Metallic > 05 Mini - Cooper S with LSD > > > Search the ARCHIVES:http://www.mail-archive.com/bmwuucdigest@uucdigest.com > > > __________________________________________________________________________ > In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. > > UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate > Short Shifter - accept no substitutes! > 908-874-9092 . http://www.uucmotorwerks.com ------------------------------ End of [bmwuucdigest] digest(2 messages) **********
