10-12-2019, 01:46 PM
im back with more info if some of the veteran 306 people don't mind looking. I have posted on the facebook group too and have some lines of investigation.
Code p0190 being thrown for Fuel pressure sensor circuit (using my china reader).
I pulled lift pump and that's clean, as is the tank. Pulled filter, that's clean and replaced anyway. Car starts on the button and will drive just in limp mode. Next up I went for the sensor plug (red one) and using the battery as ground and ignition on checked the three pins:
Pin 1 (green wire) - 0v
Pin 2 (white wire) - 1.3v
Pin 3 (Pink Wire) - 9.5v
From google and these forums etc Pin 1 looks to be ground, pin 2 is signal and pin 3 is feed, but 2 and 3 should be 0.5 and 5v respectively. I checked the readings at the famous yellow plug and they are the same.
Im not stuck as to what to check, im going to try and find the pins in the ecu for the above three wires to check continuity and breaks.
Any ideas on what is causing this at all?
Code p0190 being thrown for Fuel pressure sensor circuit (using my china reader).
I pulled lift pump and that's clean, as is the tank. Pulled filter, that's clean and replaced anyway. Car starts on the button and will drive just in limp mode. Next up I went for the sensor plug (red one) and using the battery as ground and ignition on checked the three pins:
Pin 1 (green wire) - 0v
Pin 2 (white wire) - 1.3v
Pin 3 (Pink Wire) - 9.5v
From google and these forums etc Pin 1 looks to be ground, pin 2 is signal and pin 3 is feed, but 2 and 3 should be 0.5 and 5v respectively. I checked the readings at the famous yellow plug and they are the same.
Im not stuck as to what to check, im going to try and find the pins in the ecu for the above three wires to check continuity and breaks.
Any ideas on what is causing this at all?