Title: Disabling Fuel Trims in MED9 Post by: Jerry Tunin on August 24, 2021, 12:53:55 AM I am working on tuning FKKVS...
Per FR: 5.2.2 Partial function NOLRA: - Formation of the shutdown bits B_noora, B_nofra, B_noorat and B_nofrat. The code word NOLRA can be used to switch the areas on and off individually. ¨ Bit 0 in NOLRA = TRUE: B_noora is set => area ORA is neutral. Bit 1 in NOLRA = TRUE: B_nofra is set => area FRA is neutral Bit 2 in NOLRA = TRUE: B_nofrat is set => It is not possible to detect a mixture error via temperature dependent correction. ¨ Bit 5 in NOLRA = TRUE: B_noorat is set => It is not possible to detect a mixture error via temperature dependent correction. ¨ - Formation of the bit for reset readiness of the integrators in case of error memory clearing (B_lrareb) ¨ NOLRA bit 3= FALSE can be used to set the adaptation to neutral in case of error memory clearing. ¨ NOLRA bit 4= FALSE and BIT 3 = TRUE can be used to set the adaptation to neutral in case of a threshold overflow in the DKVS (B_edkvs = TRUE). can be set. For projects with 2 fill detection sensors (HFM and P sensor), depending on the main load sensor, the adaptation is switched between both additive adaption corrections. If ¨ B_dssakt = True, then the main load sensor is the intake manifold pressure sensor. Here the range is limited by parameters with index 3. With a HFM system the range is limited by parameters with index 1. Would setting NOLRA to: 11100100 be correct? Title: Re: Disabling Fuel Trims in MED9 Post by: Jerry Tunin on August 25, 2021, 01:15:05 PM 00100111 seems to be correct.
Title: Re: Disabling Fuel Trims in MED9 Post by: prj on August 26, 2021, 04:53:53 AM 00100111 seems to be correct. Well yes because when you write a single byte you always write MSBit first. And MED9 is MSB First anyway. Title: Re: Disabling Fuel Trims in MED9 Post by: Jerry Tunin on October 03, 2022, 04:28:32 PM Yeah, I don't think this is right yet. It's still doing some type of adaption after driving for a while, you can just feel the car improve from when it was flashed and 30 minutes later everything is pretty smooth.
Title: Re: Disabling Fuel Trims in MED9 Post by: jacktfsi on October 20, 2022, 01:14:13 PM Set nolra to 5
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