iliasfyntanidis Posted July 13, 2018 Report Share Posted July 13, 2018 Hi there. Anyone has a calibration table for this VDO sensor? It maxes out at 80 psi and also has a warning contact of low oil pressure wich is 6psi +/-2psi. Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 13, 2018 Report Share Posted July 13, 2018 I would not bother with one of those resistance type sensors, they were originally designed to be pulled-up by the gauge to either 12 or 24V, so to get decent resolution with a 5V system you need a very grunty pull up and it will be using 50-100mA from your 5V supply. They also have absolute crap error tolerance. See calibration below. At 5 Bar the resistance can be anything between 154 & 214ohm or about +/-20%! Quote Link to comment Share on other sites More sharing options...
iliasfyntanidis Posted July 13, 2018 Author Report Share Posted July 13, 2018 Any suggestions of what type of sensors for an accurate reading?Trued and tested for accurate readings. Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 13, 2018 Report Share Posted July 13, 2018 0-5V 3 wire type. Honeywell PX3 are good quality and reasonably priced. Quote Link to comment Share on other sites More sharing options...
iliasfyntanidis Posted August 22, 2018 Author Report Share Posted August 22, 2018 Purchased the pressure sensor as stated above. The connector that I have to buy is Push to Seat or Pull to Seat? Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 23, 2018 Report Share Posted August 23, 2018 8 hours ago, iliasfyntanidis said: The connector that I have to buy is Push to Seat or Pull to Seat? Either will work, but the push to seat type are much easier to work with. Search 15397149 or 15397275, these are push to seat and have a nice lip on the back for shrink boot. If you are not in a rush, I have used these ones off aliexpress without drama: https://www.aliexpress.com/item/Free-shipping-5sets-kit-LS-TPS-AEM-MAP-GT150-3p-waterproof-connector/32643558809.html Quote Link to comment Share on other sites More sharing options...
iliasfyntanidis Posted August 23, 2018 Author Report Share Posted August 23, 2018 The fact is that I bought the Pull to Seat version and when I tried to connect the sensor to the connector the two plugs that are placed together went far way back. Only the one that is placed alone stayed flush with the connector body. Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 23, 2018 Report Share Posted August 23, 2018 That sounds like you may have assembled it wrong in that case. The Pull to seat are a bit stupid. You have to first thread the wire through the plastic housing before crimping the terminals on, then crimp on the terminals, then pull the wires and terminals backwards into the housing. Clearer instructions here: Pull2seat.pdf Quote Link to comment Share on other sites More sharing options...
iliasfyntanidis Posted August 23, 2018 Author Report Share Posted August 23, 2018 Bought it assembled from eBay. Item number https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com.au%2Fulk%2Fitm%2F273138618841 The seller sent me a second one. Hope to be OK. Next time I will assembly it my self. Report back. Quote Link to comment Share on other sites More sharing options...
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