Omni 4bar map sensor Plug and Play
Mar 20, 2009, 07:40 PM
#87
The reading is more sensitive to resolution the ADC then the accuracy of the sensor as most pressure transducers are very accurate.
An 8-bit ADC with a 4bar MAP sensor has a resolution of ~0.01568 bar (or 0.2275 PSI).
A 3 bar has a resolution of ~0.1177 bar (or 0.1706PSI).
That's assuming the sensor uses the full scale of the ADC, which it usually doesn't and actual resolution is usually even lower.
This is a pretty signifigant detail when using a MAP based system as your resolution goes to crap, the fueling becomes very unstable.
An 8-bit ADC with a 4bar MAP sensor has a resolution of ~0.01568 bar (or 0.2275 PSI).
A 3 bar has a resolution of ~0.1177 bar (or 0.1706PSI).
That's assuming the sensor uses the full scale of the ADC, which it usually doesn't and actual resolution is usually even lower.
This is a pretty signifigant detail when using a MAP based system as your resolution goes to crap, the fueling becomes very unstable.
Mar 21, 2009, 08:31 AM
#88
Is the ADC in the MAFTPro an 8-bit ADC?
It's been cleared up though that the factory ECU has the ability to do higher bit resolution if required.
Mar 25, 2009, 04:20 PM
#89
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Hello this is Steve from OmnipowerUSA.com just thought i would poke my head in here and offer a bit of info on our Mitsubishi 3,4,and 7 bar map sensors.
Each map sensor is hand assmebled, tested and packaged in house at OmnipowerUSA. The plug and play verbage that we use refers to the ease of installation as all our map sensors are application specific and plug in to the factory harness/bolt into the factory location. Anytime a map sensor is changed there will have to be a correction/adjustment made to the ECU so it has correct scaling to go by.
We have manufactured over 3500 map sensors of various models in the last 2 years and have perfected the process thoroughly. We have tried 4 different types of solder, several adhesives and different grades of plastic. The EVO8 sensor has all of our collective experience and perfected manufacturing techniques incorporated into it. We use a special custom made plastic adhesive that is rated at 200 PSI to keep the sensor leak free under the most demanding enviorments.
Each MAP sensor carries a lifetime warranty and includes a new viton O-ring.
Were considering becoming a vendor on this site and are in talks with Internet Brands at the moment.
We have calibrations for AEM EMS on our website or you can email me with any technical questions at Omnimanlsr@aol.com
thanks steve
Each map sensor is hand assmebled, tested and packaged in house at OmnipowerUSA. The plug and play verbage that we use refers to the ease of installation as all our map sensors are application specific and plug in to the factory harness/bolt into the factory location. Anytime a map sensor is changed there will have to be a correction/adjustment made to the ECU so it has correct scaling to go by.
We have manufactured over 3500 map sensors of various models in the last 2 years and have perfected the process thoroughly. We have tried 4 different types of solder, several adhesives and different grades of plastic. The EVO8 sensor has all of our collective experience and perfected manufacturing techniques incorporated into it. We use a special custom made plastic adhesive that is rated at 200 PSI to keep the sensor leak free under the most demanding enviorments.
Each MAP sensor carries a lifetime warranty and includes a new viton O-ring.
Were considering becoming a vendor on this site and are in talks with Internet Brands at the moment.
We have calibrations for AEM EMS on our website or you can email me with any technical questions at Omnimanlsr@aol.com
thanks steve