P0546 Error Code Help

[cmal1001]

The plenum chamber is where the battery is located. The drains under the tray and under the servo get blocked and the chamber fills with water, gallons of it. There is a box in the right corner which houses the engine ECU, a relay or two and couple of fuses. If water gets in there it causes havoc.

This is the area where my battery is, it looks dry should i try to get into the ECU box to see if there is water in there?

20221009_132503.jpg

[cmal1001]

The plenum chamber is where the battery is located. The drains under the tray and under the servo get blocked and the chamber fills with water, gallons of it. There is a box in the right corner which houses the engine ECU, a relay or two and couple of fuses. If water gets in there it causes havoc.

Just had a look inside the ECU box, its actuallt dry and clean! which im surprised! So i can only assume that the gas temp sensor has actually gone?

20221010_145345.jpg

[Crasher]

That all looks good so hopefully just a faulty sensor and not a wiring issue.

[cmal1001]

That all looks good so hopefully just a faulty sensor and not a wiring issue.

Fingers crossed! I now just need to locate the sensor do you know where i can find it? It's on a BRD engine

[Crasher]

It is in the exhaust manifold before the turbo, some can be very tricky to get at and you need a special deep 17mm socket with a slot up the side to avoid damaging the metal curved section if you want to set the torque at 45Nm. You have to remove the lambda sensor first and this must have new anti seize paste applied, NOT copper grease!



The sensors alignment is important

[mickeybo]

I would air on the side of caution on this your fault code circuit high which tells me A circuit high is only likely to be activated if theres a short to another circuit that is carrying a voltage

[cmal1001]

I would air on the side of caution on this your fault code circuit high which tells me A circuit high is only likely to be activated if theres a short to another circuit that is carrying a voltage

Hey pal, thanks for replying. So the sensor may be working but its possibly shorting? Do you know what i should be looking at/for?