It's a new sensor and genuine Nissan, although i got it cheap from the US and had it a while before fitting.
I asked the garage to take a look at the DET sensor while it was on the ramps but I'm not sure if they did or not because I had a lot of work done so they could of easily forgot. I forgot to ask when collecting the car.
As said tomorrow I will give it a proper good look over to the best of my efforts, I've compiled a little list for myself or the garage if I go back to get them to work on it lol
if anyone can think of anything else to check then please let me know, any help and suggestions are welcome lol.
Car going in limp mode. Showing code for DET sensor.
Check torque settings on DET sensor as must not be over/under tightened.
Check plug and wires to DET sensor (spray with contact cleaner if needed)
Possible low voltage from alternator/battery?
Wire going into plug on alternator in poor shape, battery not the best.
Oil leak from distributor (possible ignition system problems from this)
Other faults worth noting:
Temperature gauge is erratic when on boost (temp sensor, possible bad earth)
Aftermarket rad-fan control fitted due to fans not kicking in (possibly related to above issues)
Has slight misfire at partial throttle at around 2krpm (possibly related to said issues)
Battery dose not hold charge for longer than a few days
Other things to check:
Look for any sign of any metallic object that could be vibrating against the block causing the sensor to pick up false knock.
Check ignition timing (may be unable to adjust correctly if in limp mode).
Check voltage at fuel pump (known issue with voltage drop on old wiring).
There are a few things on that list I won't be able to do myself but I want to at least narrow it down a little befor I hand it over to the garage and spend another small fortune