Hello folks, I'm toying with the idea of getting a cheap P38 DSE I have previously owned a BMW E34 525TDS Tourer with the same engine. In the car the engine was very gutless at low revs until about 18,000 when the turbo starts to work. This was somewhat improved with a remapped pair of chips but...

I had this same fault on my old BMW 525 TDS. There is a resistance check you can do across the injectors plug. I can't find the resistance you should get at the moment but mine was giving a different resistance. Once replaced (with a secondhand item from a Rangie funnily enough) it was back to...