Hello, I have a problem with the B7 1.8 TSI passat.
The car is only 21tkm from 2012!
We always refueled with 98 fuel, and one day, having a little more than half a tank, I topped it up with 95. I got home without any problems. In the morning I barely left the garage and went out. I connected vcds and it showed two errors:
000604 - fuel pomp Control module
P025c - short to ground - MIL ON
The second one I remember is P026c - electrical fault
I would like to add that after extinguishing, it pumps up with the ignition 2 times and fires without any problems, but only for about 10s.
The controller at the pump in the fuel tank receives 12v non-stop, after starting the controller gives 6-6.5v current to the pump. After some time, the voltage increases and when it exceeds 8v, the EPC error appears on the table, when it exceeds 9v, the voltage disappears and the pump does not work anymore.
I bought a new driver from ASO hoping that this was the problem. Unfortunately still the same. I bought a stimulant pump and nothing helped (I sent the pump back). I've been to two mechanics and they're spreading their hands. Relays checked, everything ok.
There is also the high pressure pump (at the engine) and the pressure sensor. My attention was drawn to the quite loud work of the high pressure pump, there is such a strange chirping, you can hear it even with the mask closed.
Finally, I will add that sometimes the car behaves as if nothing was happening, recently I drove even 20km to the mechanic and even the error did not pop up. The power is there, no jerking. On the second day, unfortunately, I came back on the rope.
Sorry for such a long post, but I wanted to describe everything in detail.
The car is only 21tkm from 2012!
We always refueled with 98 fuel, and one day, having a little more than half a tank, I topped it up with 95. I got home without any problems. In the morning I barely left the garage and went out. I connected vcds and it showed two errors:
000604 - fuel pomp Control module
P025c - short to ground - MIL ON
The second one I remember is P026c - electrical fault
I would like to add that after extinguishing, it pumps up with the ignition 2 times and fires without any problems, but only for about 10s.
The controller at the pump in the fuel tank receives 12v non-stop, after starting the controller gives 6-6.5v current to the pump. After some time, the voltage increases and when it exceeds 8v, the EPC error appears on the table, when it exceeds 9v, the voltage disappears and the pump does not work anymore.
I bought a new driver from ASO hoping that this was the problem. Unfortunately still the same. I bought a stimulant pump and nothing helped (I sent the pump back). I've been to two mechanics and they're spreading their hands. Relays checked, everything ok.
There is also the high pressure pump (at the engine) and the pressure sensor. My attention was drawn to the quite loud work of the high pressure pump, there is such a strange chirping, you can hear it even with the mask closed.
Finally, I will add that sometimes the car behaves as if nothing was happening, recently I drove even 20km to the mechanic and even the error did not pop up. The power is there, no jerking. On the second day, unfortunately, I came back on the rope.
Sorry for such a long post, but I wanted to describe everything in detail.
