|
Title: Audi S4 B6 4.2 V8 BBK 344HP - P17536 - Fuel Trim; Bank 1 (Mult): System too Lean Post by: rpd on February 01, 2021, 02:48:40 AM Hello,
I have a problem with my Audi S4 B6. For some time now, a check engine indicator related to the P17536 (Fuel Trim; Bank 1 (Mult): System too Lean) error appears to me. Sometimes the error P17538 also occurs with it. Fuel corrections under load go up quickly to around 10% to 15% even after reset. Idle adjustments are good - close to 0%. I suspect that the fuel pump is not giving the right pressure because the injection times are increasing to 20ms under load. Am I right? Please rate the logs. Static logs: Groups 002+033: https://log.tunezilla.com/s/AKe6hp6Y (https://log.tunezilla.com/s/AKe6hp6Y) Groups 003+033: https://log.tunezilla.com/s/XszIIikq (https://log.tunezilla.com/s/XszIIikq) Dynamic logs: Groups 002+033 - run 1: https://log.tunezilla.com/s/cOJaOB3c (https://log.tunezilla.com/s/cOJaOB3c) Groups 002+033 - run 2: https://log.tunezilla.com/s/HOJmXcJy (https://log.tunezilla.com/s/HOJmXcJy) Groups 002+033 - run 3: https://log.tunezilla.com/s/8upWieZX (https://log.tunezilla.com/s/8upWieZX) Title: Re: Audi S4 B6 4.2 V8 BBK 344HP - P17536 - Fuel Trim; Bank 1 (Mult): System too Lean Post by: bamofo on February 02, 2021, 07:34:09 AM Is it tuned?
Title: Re: Audi S4 B6 4.2 V8 BBK 344HP - P17536 - Fuel Trim; Bank 1 (Mult): System too Lean Post by: rpd on February 02, 2021, 07:49:56 AM Is it tuned? No it is stock. Only SAI is deleted from ECU. Title: Re: Audi S4 B6 4.2 V8 BBK 344HP - P17536 - Fuel Trim; Bank 1 (Mult): System too Lean Post by: bamofo on February 02, 2021, 11:38:19 AM on the B6S4 Platform if you have runaway fueling its probably a clogged filter and not the pump. Have you changed it recently? JHM has a high flow one that works well. if you have other questions PM me.
|