JZJOE80 Posted October 25, 2023 Report Share Posted October 25, 2023 I have my sensors wired up as they should be. i run my fuel pump and it doesn’t register, if i crank the car oil pressure doesn’t register either. is there something i might be missing? thanks in advanced fellas. Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 25, 2023 Report Share Posted October 25, 2023 AN Volt 8 & 9 are both showing near 0V, common fluid pressure sensors output 0.5V so if they were connected correctly and working you would have near 0.5V showing here. The chances of 2 dead sensors is pretty slim, so likely there is a wiring issue. Quote Link to comment Share on other sites More sharing options...
JZJOE80 Posted October 25, 2023 Author Report Share Posted October 25, 2023 2 minutes ago, Adamw said: AN Volt 8 & 9 are both showing near 0V, common fluid pressure sensors output 0.5V so if they were connected correctly and working you would have near 0.5V showing here. The chances of 2 dead sensors is pretty slim, so likely there is a wiring issue. i have both of my 5v wires from the sensors going to red ground wire from the sensors to green and green and brown for signal i’ll check tomorrow when my battery charges up. thank you adam Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 25, 2023 Report Share Posted October 25, 2023 Unplug the sensors and check voltage between the 5V and ground pins in the sensor plug. If that looks ok then get a paperclip or similar and short the 5V pin to the signal pin in the sensor plug, to confirm if the signal is getting back to the ecu. Quote Link to comment Share on other sites More sharing options...
JZJOE80 Posted October 25, 2023 Author Report Share Posted October 25, 2023 13 hours ago, Adamw said: Unplug the sensors and check voltage between the 5V and ground pins in the sensor plug. If that looks ok then get a paperclip or similar and short the 5V pin to the signal pin in the sensor plug, to confirm if the signal is getting back to the ecu. checked for 5v and it was pinned correctly and got full voltage. bridged the 5v to the signal side on both and they reacted to that. does this mean dead sensors then? Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 26, 2023 Report Share Posted October 26, 2023 9 hours ago, JZJOE80 said: does this mean dead sensors then? It sounds that way. Quote Link to comment Share on other sites More sharing options...
JZJOE80 Posted October 26, 2023 Author Report Share Posted October 26, 2023 4 hours ago, Adamw said: It sounds that way. thank you Quote Link to comment Share on other sites More sharing options...
Confused Posted October 27, 2023 Report Share Posted October 27, 2023 Stupid thought, you've definitely got the sensors wired the correct way round? Some wiring diagrams show the pins as looking into the connector, some as looking into the sensor itself - it's quite easy on a 3 pin sensor like this to get a couple of the pins the wrong way round. For the same issue to show itself on two sensors - the chances of both sensors being dead seem low - more likely is the same wiring fault applied to both of them. Quote Link to comment Share on other sites More sharing options...
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