Steve, can I make a suggestion?

As the threads move further and further down the list, the thread here made will eventually become lost, difficult to find, so I wonder if it is possible to make it a "sticky".

I suppose you would have to do some trial and error testing to conclude your own results, but here is a theory; Suppose you count the number of humps displayed on your scope from the alternator ripple, alter your time base to achieve a good waveform in one revolution, then as there are 60K ms in one...

Welcome to the pico forum

Hi STC, I am sorry I didn't acknowledge the following information from you; From the Diagram above my understanding is that item 11 -"Pressure Relief Valve" is the calibrated "Restriction" responsible for creating then maintaining the correct pressure in the circuit between the outlet of the LP pump...

No cure unfortunately. I tried a new air mass meter today and although the readings are now equal or above the desired g/s the fault code still appears, that is the P1260. I have run the engine without the low fuel pressure sensor connected and the engine will rev fully, a road test initially proves...

Just out of interest, what is the pressure sensor voltage with 4.4 bar in the pipes? but I am somewhat confused with two areas now on this fuel system, which are; 1 / What and where controls the low system fuel pressure regulation, the pump pressure is now 4.40 bar, 2 / If a MAP sensor has a 5V ref...

AP sensor has a 5V reference voltage, the ground is 0V, AD advises that the terminal 3 (output) is 4.3V at idle, then if I am getting about 2.5V at idle and the voltage drops to about 1.7V when I rev the engine, then I think I should be looking to see if the 5V reference is dropping off when I rev ...

This thread is getting a bit long now and I don't want to loose sight of the origin of the problem it came in with and the problem it has now. If we refer back to the original post I advised that the land rover smoked, blue smoke and then cleared, and a fault code P1190 referring to the fuel rail pr...

Thanks Andrew, yes I did think about the fuel reactions and thought about petrol and how it affects the skin after contact, diesel does not seem to react the same. I'll give it a go...

It is a strange one be nice to know the strategy for the fault code good luck Andrew Working on the Td4 tomorrow, will see what happens about the strategy of the code. I never thought about this important point when testing the fuel pressure, but on the low side from the pump can I use my 014800 sy...