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armageddon
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« on: July 29, 2017, 01:47:35 AM »
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I have been using the 4bar map sensor without problem, but now I am using 3bar map 038906051A but theres a ~60mbar discrepancy between baro pressure and actual pressure at idle being actual pressure lower. I remember julex had a similar problem that was caused by DSLGRAD / DSLOFS. I am using DSLGRAD 658.82 and DSLOFS -63.51 Can anyone confirme if this is correct? and if so, what else could cause this?  |
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« Last Edit: July 29, 2017, 03:07:53 AM by armageddon »
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nyet
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« Reply #1 on: July 29, 2017, 09:35:51 AM »
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You logged req pressure, not baro.
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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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armageddon
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« Reply #2 on: July 29, 2017, 10:12:46 AM »
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baro vs actual  |
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dgpb
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« Reply #3 on: July 29, 2017, 12:53:26 PM »
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I made this simple table for me some time ago and it works well. Hope it's useful for you too. Its calculations are already @3bar, but you'd better know the setup points for your specific sensor.
PS: Your calculation was wrong
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« Last Edit: July 29, 2017, 12:56:27 PM by dgpb »
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armageddon
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« Reply #4 on: July 29, 2017, 12:57:58 PM »
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thanks, will try those and report back
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dgpb
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« Reply #5 on: August 14, 2017, 12:06:34 PM »
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thanks, will try those and report back
Does it work? |
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armageddon
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« Reply #6 on: August 14, 2017, 05:00:14 PM »
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not tested yet...
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fknbrkn
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mk4 1.8T AUM
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« Reply #7 on: August 14, 2017, 10:00:23 PM »
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658 / -59
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Khendal
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« Reply #8 on: August 15, 2017, 06:06:11 AM »
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I made this simple table for me some time ago and it works well. Hope it's useful for you too. Its calculations are already @3bar, but you'd better know the setup points for your specific sensor.
PS: Your calculation was wrong
With this formula is it possible to change map sensor and have it worked? For example changing the 2550mbar ori with a 3bar or 4 bar? Is it enough? |
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armageddon
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« Reply #9 on: October 26, 2017, 10:21:49 AM »
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Sorry the late reply, but it was only possible to test today.
Still the same, whith dgpb values it reads the same diference
with fukenbroken values its even worst.
any clues?
could it be a bad sensor?
first log with dgpb values, second with fukenbroken values
I find various spec values for the sensor, but the more constant is 20-300kpa 0.4-4.65V that gives the DSLOFS/DSLGRAD on the first post.
regards
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fknbrkn
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mk4 1.8T AUM
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« Reply #10 on: October 26, 2017, 05:06:22 PM »
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im using the same sensor
with values i shared (if we talking about non-5120 file)
it shows ~ 960..980 mbar
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« Last Edit: October 26, 2017, 06:01:04 PM by fukenbroken »
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nyet
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« Reply #11 on: October 26, 2017, 05:45:23 PM »
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Log voltage if possible.
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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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GianniNOS
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« Reply #12 on: October 27, 2017, 02:07:28 AM »
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when do you measure the engine is off?
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armageddon
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« Reply #13 on: October 27, 2017, 02:10:20 AM »
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On the last two logs yes, first was runing.
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nyet
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« Reply #14 on: October 27, 2017, 02:17:33 AM »
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pointless until you log voltage.
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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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