Calibrate sensors?
#1
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Calibrate sensors?
Just about ready to fire the Focus up for the first time in 3 years.
now running with an Omex 710 ecu . We've just read the manual for the Omex and it's says to calibrate the water and air temp sensors by putting them in water and then heating up and cooling down then smoothing out the graph in the software
problem is, everything's buttoned down now and the water sensor is almost impossible to get at
is it absolutely necessary to calibrate the sensors or can we do it once the engines running and heating/cooling the water?
now running with an Omex 710 ecu . We've just read the manual for the Omex and it's says to calibrate the water and air temp sensors by putting them in water and then heating up and cooling down then smoothing out the graph in the software
problem is, everything's buttoned down now and the water sensor is almost impossible to get at
is it absolutely necessary to calibrate the sensors or can we do it once the engines running and heating/cooling the water?
#2
If you know the exact temperature of the water...then yes you could do it with the engine running....
Or surely if it's a common application they can give you a calibration for the sensor ?
If i doubt, stick a generic calibration for a typical Bosch NTC sensor, it might be close.
Or surely if it's a common application they can give you a calibration for the sensor ?
If i doubt, stick a generic calibration for a typical Bosch NTC sensor, it might be close.
#4
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if youve got the recommended sensors then omex supply tables to configure the water and air temp tables . And if you have the recommended sensors then omex supply a basic map ready
failing all this the research the sensors and the temp tables are easy to find . iirc omex use a ntc sensor so the figures will be identical for both sensors
failing all this the research the sensors and the temp tables are easy to find . iirc omex use a ntc sensor so the figures will be identical for both sensors
#6
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It's a brand new standard Ford sensor. I can find calibration settings for Bosch HTC sensors online buy they all express the scales in ohms whereas the Omex graph is a scale from 0 to 256
there is already a base map on there from Omex and there is a scale in place when you look at the map.
It's reading 100c permanently which according to the manual is the default temp which could indicate a fault on the sensor or the wiring. Well have to find a way to test that first
there is already a base map on there from Omex and there is a scale in place when you look at the map.
It's reading 100c permanently which according to the manual is the default temp which could indicate a fault on the sensor or the wiring. Well have to find a way to test that first
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#8
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It's a brand new standard Ford sensor. I can find calibration settings for Bosch HTC sensors online buy they all express the scales in ohms whereas the Omex graph is a scale from 0 to 256
there is already a base map on there from Omex and there is a scale in place when you look at the map.
It's reading 100c permanently which according to the manual is the default temp which could indicate a fault on the sensor or the wiring. Well have to find a way to test that first
there is already a base map on there from Omex and there is a scale in place when you look at the map.
It's reading 100c permanently which according to the manual is the default temp which could indicate a fault on the sensor or the wiring. Well have to find a way to test that first
Be fully sure you know what you are doing.
#9
I'd be pretty shocked of Omex or someone couldnt simply give you a calibration, it's not like it would be an uncommon application nobody has done before ?
And no, typical Bosch NTC or otherwise are not linear over their operating range.
Some sensors may be, but those are not so multiple data points would be needed if you're DIY calibrating it
And no, typical Bosch NTC or otherwise are not linear over their operating range.
Some sensors may be, but those are not so multiple data points would be needed if you're DIY calibrating it
#10
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It runs, but struggling to get it running right.
Going to replace the Ford sensors with Omex ones with known calibrations
Going to replace the Ford sensors with Omex ones with known calibrations
#11
That alone wont fix it needing tuned.
Have you even asked Omex or other users if they have a calibration for them ? Have you tried one for a generic Bosch NTC sensor ? ( which is probably what they'll sell you anyway )
What do they read, key on, engine off and around ambient ?
Have you even asked Omex or other users if they have a calibration for them ? Have you tried one for a generic Bosch NTC sensor ? ( which is probably what they'll sell you anyway )
What do they read, key on, engine off and around ambient ?
#12
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We are on it Steve we heated the sensors and read how hot they were and got a rough with in a couple of degrees table sorted to get the car running so at least it could be shook down for leaks and potential issues and we got that done at least.
Johnathan Dels son has been given instructions on what to find out so we can get it fully dyno ready
Johnathan Dels son has been given instructions on what to find out so we can get it fully dyno ready
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