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Author Topic: DSLOFS and DSLGRAD 3bar map sensor  (Read 13004 times)
nyet
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« Reply #15 on: October 27, 2017, 02:21:51 AM »

Even if you can't log voltage you can calculate what the voltage is at 980mbar by subtracting dslofs and dividing by dslgrad.

then you only need one more reference point, and you can calculate what dslgrad and dslofs should be.

Really, though, you're chasing your tail for no reason. Get a volt meter and get a reading with the car off and the car idling.
« Last Edit: October 27, 2017, 02:26:38 AM by nyet » Logged

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armageddon
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« Reply #16 on: October 27, 2017, 12:38:09 PM »

will try to measure sensor voltage at diferent pressures, but from previouse logs, engine off or at idle the pressure was the same.
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nyet
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« Reply #17 on: October 27, 2017, 07:21:57 PM »

will try to measure sensor voltage at diferent pressures, but from previouse logs, engine off or at idle the pressure was the same.

they'll be close because the pressure sensor is upstream of the TB
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please 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 experience.
armageddon
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« Reply #18 on: November 13, 2017, 12:55:41 PM »

Ok, so, I did not measure voltage or anything else cause the problem is with a friend's car and we are some kms apart.

I really appreciate all your contribution, but, I donĀ“t think that using anything but the calculated values for DSLOFS and DSLGRAD should be the correct approach. It should not be necessary calibration every time a stock sensor is replaced.

I got another sensor from a friend (known to be in working order) and is reading fine with the calculated values(658.82 and -63.52) so my assumption is that the sensor is just defective, probably could make it read correctly after measuring voltage/pressure but for now I will just throw in a replacement sensor.

thanks
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sonique
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« Reply #19 on: December 03, 2017, 10:55:55 AM »

today try
051C map
DSLGRAD 658,8281 
DSLOFS -63,5156
and this calibration correct

« Last Edit: December 03, 2017, 11:46:40 AM by sonique » Logged
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