C1A14 radar and P1028 error codes after low temp thermo replaced

[Mulletproofpunk]

Hi all,

Appreciate this might actually straddle a couple of topics but could do with a opinion...

Just had my low temperature thermo replaced by the local garage on a J11B, 1.5 diesel. Now getting two errors: C1A14, front radar, and P1028, exhaust gas pressure sensor.

Garage said they struggled to find the thermo and apparently unplugged stuff at random to find it.

First question is, if they unplugged the front radar, which I believe is close to the thermo, could that trigger the error? And if so, does it need a full recalibration or could it be something as simple as they've not plugged it back properly.

Second question, for the exhaust sensor. Is there any reason a new low temp thermostat would cause this error? DPF should be fine as I've been looking after that (he says, with fingers crossed).

I'm already booked in with Nissan to get the car looked at.

Lastly, what's the worst case scenario for both of these?

Cheers in advance

[Cosmyc]

I know that the service manual mandates to calibrate the front radar if physically moved or disassembled even when not directly servicing it due to work on another unrelated issue on the car, like removing the front bumper to replace radiator for example, don't know if it works even without calibrating it and then not giving optimal performance if so because it's a precision device.

Don't know about the exhaust gas pressure sensor, that shouldn't come up, unless they touched anything or were a previous registered DTC to that intervention.

[Mulletproofpunk]

Cheers Cosmyc, much appreciated