ellisd1984 Posted June 25, 2020 Report Share Posted June 25, 2020 would anyone be kind enough to show me what settings I should be programming in for these sensor (attached) Thanks David Quote Link to comment Share on other sites More sharing options...
Vaughan Posted June 25, 2020 Report Share Posted June 25, 2020 The pressure sensor looks like it matches the Link 6.5 Bar Calibration but the Temperature sensor looks like it will need a custom cal table like the one I have attached. Quote Link to comment Share on other sites More sharing options...
ellisd1984 Posted June 26, 2020 Author Report Share Posted June 26, 2020 Great, thanks for the quick response Vaughan 1 Quote Link to comment Share on other sites More sharing options...
ellisd1984 Posted June 26, 2020 Author Report Share Posted June 26, 2020 Out of interest what values should I be expecting to see from the analogue inputs when no sensor is connected? Current all inputs with nothing connected are hovering around 0.02v. Quote Link to comment Share on other sites More sharing options...
Rozsko Posted June 26, 2020 Report Share Posted June 26, 2020 56 minutes ago, ellisd1984 said: Out of interest what values should I be expecting to see from the analogue inputs when no sensor is connected? Current all inputs with nothing connected are hovering around 0.02v. I think that depends on if you have pull-up resistor or not. Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 26, 2020 Report Share Posted June 26, 2020 Analog inputs are weakly pulled down so they should sit ver close to zero with nothing connected, the temp inputs would usually be pulled up (not always) so will sit near 5V with nothing connected. Remember the fault/error settings will likely override these displayed values if the input is above or below the error settings. Quote Link to comment Share on other sites More sharing options...
ellisd1984 Posted June 27, 2020 Author Report Share Posted June 27, 2020 Thanks, like I said all inputs with nothing connected are hovering around 0.02 which I'm happy with. I just wanted to make sure they shouldn't be showing anything else and I should be looking for grounding problems Quote Link to comment Share on other sites More sharing options...
ellisd1984 Posted June 28, 2020 Author Report Share Posted June 28, 2020 On 6/26/2020 at 11:21 PM, Adamw said: Analog inputs are weakly pulled down so they should sit ver close to zero with nothing connected, the temp inputs would usually be pulled up (not always) so will sit near 5V with nothing connected. Remember the fault/error settings will likely override these displayed values if the input is above or below the error settings. With the ECU on and the engine not running the 2 pressure sensors I have installed are throwing up fault codes (an Volt X to ground) Without the engine running I understand why this can happen as the but is there a way to stop fault codes being logged? Quote Link to comment Share on other sites More sharing options...
Vaughan Posted June 28, 2020 Report Share Posted June 28, 2020 they shouldn't be throwing fault codes if they are connected to the ecu regardless of whether or not the engine is running, what voltages do they show with the sensors connected and what do you have set as the error low and error high values? Also don't forget to clear the fault codes once you think you have solved the problem as they don't go away on power cycle Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 28, 2020 Report Share Posted June 28, 2020 9 hours ago, ellisd1984 said: With the ECU on and the engine not running the 2 pressure sensors I have installed are throwing up fault codes (an Volt X to ground) Your datasheet for the sensors above shows that the pressure sensor will never output less than 0.5V. So if the ECU is telling you "Analog X is at ground" (which is actually 0V), then you have a wiring problem. Quote Link to comment Share on other sites More sharing options...
ellisd1984 Posted June 29, 2020 Author Report Share Posted June 29, 2020 I think I've solved the problem now thanks. It looks like one of the sensors was faulty out of the box. I managed to plug the suspect sensor into another connector earmarked for my fuel pressure sensor (not yet installed) and the fault jumped to that analoge input. Thanks for everyones help. Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 29, 2020 Report Share Posted June 29, 2020 2 hours ago, ellisd1984 said: I think I've solved the problem now thanks. It looks like one of the sensors was faulty out of the box. I managed to plug the suspect sensor into another connector earmarked for my fuel pressure sensor (not yet installed) and the fault jumped to that analoge input. Thanks for everyones help. So does one sensor actually work? Because your test doesnt actually prove it is the sensor that is faulty - you could just have the pinout wrong in both plugs or 5V missing etc. Quote Link to comment Share on other sites More sharing options...
ellisd1984 Posted June 29, 2020 Author Report Share Posted June 29, 2020 Yeah I've rulled out the wiring and confirmed with a known good sensor. I'm getting a new one sent out Quote Link to comment Share on other sites More sharing options...
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