Hi we recently got the P24D1 / P24D1-92 code and engine warning light in our Commercial L2H2 Fiat Ducato.
Read an article about changing exhaust sensor, the first one I saw was the Nox sensor right after the turbo, the first foto (part number 46341847). Changed the sensor with an original new. Probe in the exhaust was really stuck, but managed to removed it. Seemed to fix the problem, but the code came back.
Then I changed the Nox sensor after the DPF. Was very difficult because the sensor was almost welded to the nut it screws in to. With a big torch and a special lambda removal socket. When it was out, the threads were extremly damaged. Had to buy a special thread chaser, bought the Hazet 4683-20 and worked like a charm.
What came after the sensor was just a piece of pipe, no dampers or filters left. But changing that did also not fix the problem.
Then I came across a video of D. Rossi Automotive. This one :
In the video it becomes clear that there is an modification for the Soot sensor. Going from a 4 wire sensor to a 5 wire sensor. Called the dealer (whom we almost always avoid) and they confirmed it. They said the modification part number is: 463497780 or 00463497780.
Removed the old sensor. Was even more stuck than the last Nox sensor. Managed to get it out with an 24mm brake line spanner (6 point spanner with a small cut in it so it can go around a pipe), a lot of heat and a lot of swearing.
Threads obvliously damaged. But I had an expensive thread chaser that would do the job. WRONG! The threads of this sensor are 22mm instead of 20mm. So needed to buy a new tap. The Hazet 4683-22. With a slight modification to the bottom of the tap (was a little too thick for the hole).
Installed new sensor and got an appointment at the dealership for the modification software. Took about 10 minutes for the update and 30 minutes in total. The update itself was €45 and they booked the Ducato for an Hour of work at €160 without tax an hour....
All is well now and van drives great without any warning lights.
If you look at the pictures you will see the difference in sensors. (4 wire vs 5 wire) The connector at wich goes to the car is the same on both sensors.
Read an article about changing exhaust sensor, the first one I saw was the Nox sensor right after the turbo, the first foto (part number 46341847). Changed the sensor with an original new. Probe in the exhaust was really stuck, but managed to removed it. Seemed to fix the problem, but the code came back.
Then I changed the Nox sensor after the DPF. Was very difficult because the sensor was almost welded to the nut it screws in to. With a big torch and a special lambda removal socket. When it was out, the threads were extremly damaged. Had to buy a special thread chaser, bought the Hazet 4683-20 and worked like a charm.
What came after the sensor was just a piece of pipe, no dampers or filters left. But changing that did also not fix the problem.
Then I came across a video of D. Rossi Automotive. This one :
In the video it becomes clear that there is an modification for the Soot sensor. Going from a 4 wire sensor to a 5 wire sensor. Called the dealer (whom we almost always avoid) and they confirmed it. They said the modification part number is: 463497780 or 00463497780.
Removed the old sensor. Was even more stuck than the last Nox sensor. Managed to get it out with an 24mm brake line spanner (6 point spanner with a small cut in it so it can go around a pipe), a lot of heat and a lot of swearing.
Threads obvliously damaged. But I had an expensive thread chaser that would do the job. WRONG! The threads of this sensor are 22mm instead of 20mm. So needed to buy a new tap. The Hazet 4683-22. With a slight modification to the bottom of the tap (was a little too thick for the hole).
Installed new sensor and got an appointment at the dealership for the modification software. Took about 10 minutes for the update and 30 minutes in total. The update itself was €45 and they booked the Ducato for an Hour of work at €160 without tax an hour....
All is well now and van drives great without any warning lights.
If you look at the pictures you will see the difference in sensors. (4 wire vs 5 wire) The connector at wich goes to the car is the same on both sensors.
