o2bad455
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« on: September 02, 2018, 11:45:58 AM »
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Fixed the Nef Bosch Stage1 bin with me7sum (6 errors reported by me7sum versus just 4 errors reported by me7check), flashed with Nef and tested on my 2000 S4 6MT with Bosch MAF in garage. Started right up! Working version for BOSCH MAF uploaded here. I had one new unexpected error reported by VCDS: 18058 - Powertrain Data Bus P1650 - 35-00 - Missing Message from Instrument Cluster. Is that a remnant of running a 551M bin on a cluster coded for 551A? Should I expect anything strange from it (e.g., limp mode) and/or attempt to re-code the cluster?
What's the most complete available xdf in English (I think I might have the noob version)? If not in English, is there a more complete German xdf? I'll try to get a sticker on Tuesday and then take the machine out for some testing/logging. Please LMK what's needed/desired.
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« Last Edit: September 02, 2018, 12:09:24 PM by o2bad455 »
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Audi B5 S4 6MT, VW MkV TDI DSG, Smart MkI cdi, VW MkI race cars (road and ice).
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o2bad455
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« Reply #2 on: September 03, 2018, 03:20:01 PM »
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Thanks Nye! I risked an impromptu spin on the same flash to make an emergency parts run for another car. Boost limit was 0 psi on the way to the store, then 5-6 psi (VDO gauge) on the way back. I hadn't seen a 0 psi limit before, but 5 psi was the same as my old A-box tune's limp mode. Fueling was excellent with the Nef tune, so I'm guessing boost was capped by limp mode merely from the cluster error. No logging yet, but will do later this week. I implemented the CWCANR correction per your link and fixed the checksums in the attached bin, but haven't flashed or tested this one at all yet.
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Audi B5 S4 6MT, VW MkV TDI DSG, Smart MkI cdi, VW MkI race cars (road and ice).
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nyet
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« Reply #3 on: September 03, 2018, 03:25:17 PM »
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ideally you should be recoding the cluster (adaptation channel 60) and not changing CWCANR unless that doesn't work
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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o2bad455
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« Reply #4 on: September 03, 2018, 05:27:03 PM »
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Thanks again! I did read the part about first attempting to re-code the cluster for CAN, and I'll now try that before re-flashing the ECU, but my recollection is that this car doesn't even have a CAN bus. In VCDS, for example, I've had to manually select the chassis type since automatic determination required CAN. I'm not even sure what hardware implements a CAN bus (ECU, cluster or other). If the A-box ECU simply lacks it, I suppose I could try to pick up a later hardware ECU that supports it. If it's the cluster (or worse yet the harness), though, I'd rather not replace that.
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« Last Edit: September 03, 2018, 05:49:38 PM by o2bad455 »
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Audi B5 S4 6MT, VW MkV TDI DSG, Smart MkI cdi, VW MkI race cars (road and ice).
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o2bad455
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« Reply #5 on: September 04, 2018, 06:42:10 PM »
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No changes other than sitting overnight, but I took it for a quick spin and, surprisingly, boost was up to 11psi, which I believe is spot on for Nef Stage 1. So, I guess 18058/P1650 wasn't actually causing limp mode. Then I adjusted instrument cluster adaptation channel 60 from 00000 to 01025 (Immo 2 to Immo 3), but 18058/P1650 came back immediately after clearing DTCs. Is that the right adjustment to channel 60? I confirmed here ( https://s4wiki.com/wiki/Cluster_recode) but not sure if there are alternative adjustments to try. If that was the right adjustment for channel 60, then it looks like I would need to flash the altered CWCANR bin to clear the 18058/P1650. Is there some particular danger to doing that? Is clearing 18058/P1650 even necessary? |
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« Last Edit: September 04, 2018, 07:55:21 PM by o2bad455 »
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Audi B5 S4 6MT, VW MkV TDI DSG, Smart MkI cdi, VW MkI race cars (road and ice).
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nyet
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« Reply #6 on: September 04, 2018, 10:41:37 PM »
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Is there some particular danger to doing that? Is clearing 18058/P1650 even necessary?
No, no danger. No, it isn't strictly necessary (it won't affect anything) but it is nice to not have any DTCs  |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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o2bad455
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« Reply #7 on: September 05, 2018, 09:30:28 AM »
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Thanks again Nye! For the record, something (presumably ECU, cluster and/or harness) in my stock hardware 2000 B5 S4 6MT (build date 03/2000) simply doesn't support CAN bus communications. With the A-box cross-flashed to M-box bin, I always got the ECU DTC with either instruments channel 60 setting 00000 (dec) or 01025 (dec), and changing instrument cluster adaptation channel 60 from 00000 to 01025 following the above-mentioned S4Wiki procedure simply added a comparable instruments DTC. With instruments adaptation 60 back to 00000, I've now flashed the above-uploaded NefMStg1BoschCWCANR bin, which I believe differs from the standard Nefmoto Community Stage1 M-box bin in only the Bosch MAF table and the CWCANR coding, and all is well. That is, no DTCs or limp mode.  |
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Audi B5 S4 6MT, VW MkV TDI DSG, Smart MkI cdi, VW MkI race cars (road and ice).
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nyet
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« Reply #8 on: September 05, 2018, 10:55:22 AM »
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Thanks for the info; there are a lot of cluster/ECU combinations and they all behave a bit differently and require different changes, so it doesn't surprise me you had to be a bit creative.
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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