Needle lift sensor resistance value ?

[stinka]

Any idea on what it should be?

Also crank sensor ?

And can you test maf this way ?

Thanks

 

[makeitfit]

Maf can be tested and should be a liner voltage rise I think with revs. The ckp on mine was meant to be in the range of 900 ohms. The No! I have no idea, but checkoput the manual 'cause those figures are there I'm sure :thumbs and how to test :thumb2

 

[rayf3262]

This may help with checking the No1 inj. lift sensor:
http://www.nissan4x4ownersclub.com/forum/showpost.php?p=93997&postcount=2

 

[stinka]

Maf can be tested and should be a liner voltage rise I think with revs. The ckp on mine was meant to be in the range of 900 ohms. The No! I have no idea, but checkoput the manual 'cause those figures are there I'm sure :thumbs and how to test :thumb2

Brilliant cheers mate

This may help with checking the No1 inj. lift sensor:
http://www.nissan4x4ownersclub.com/forum/showpost.php?p=93997&postcount=2

Cheers for that mate, so around 100 ohms

 

[stinka]

Ok, replaced crank sensor with one I got from plank, this was 853 ohms, the one I took out was 1050 ohms and magnet was covered in swarf, but no difference to running :/

Needle lift was 120 ohm

Maf was increasing voltage from 4.53 v to 6 v odd when revved on spot, so more than likely ok, well it's doing something any how

What next guys ?

 

[makeitfit]

Forgotten the problem now :augie tell me again, go on , before I get totalled :lol

 

[stinka]

2 problems :

1:

intermittent loss of power, sometimes instant, sometimes creeps up as a gradual tail off of full power, either way quick flick off ignition off and on restores it

2:

mass grey smoke/ missfires, on start up. only stopping when warm. excessive black smoke generally when warm

 

[makeitfit]

2 problems :

1:

intermittent loss of power, sometimes instant, sometimes creeps up as a gradual tail off of full power, either way quick flick off ignition off and on restores it

So many options, needn't be electrical either, like fuel filter?

2:

mass grey smoke/ missfires, on start up. only stopping when warm. excessive black smoke generally when warm

Glow plugs and or g/p solenoid/timer.
Turbo boost smoking , hmmm, could be pointing to fuel pump maybe :nenau

 

[stinka]

All gp new by me and Is power to rail until relay clicks off etc

It's fuel IMO

Injectors out and cleaned next I think

Then fk knows DON'T SAY PUMP AGAIN PLEASE :doh

 

[stinka]

Fuel filter new twice in last 3 months, new fuel lines, tightened all fuel clips up

 

[Fez_uk]

have you tried a different fuel filter, As there has been problems in the past with dodgy fuel filters.

 

[stinka]

Just took injectors into the specialist in town. Needed a 5 ft breaker bar to crack them off

 

[rayf3262]

The MAF o/p should be around 1.8~2.2 volts at idle speed, rising to around 4.4~4.8 volts at around 3000RPM.
If the o/p is over ~2.8 volts at idle that is not correct, and will probably cause over fuelling.
Also it should defiantly not exceed 5 volts under any circumstances!

 

[stinka]

The MAF o/p should be around 1.8~2.2 volts at idle speed, rising to around 4.4~4.8 volts at around 3000RPM.
If the o/p is over ~2.8 volts at idle that is not correct, and will probably cause over fuelling.
Also it should defiantly not exceed 5 volts under any circumstances!

new maf required then :thumb2

 

[rayf3262]

Ok,
Maf was increasing voltage from 4.53 v to 6 v odd when revved on spot, so more than likely ok, well it's doing something any how

What next guys ?

If the MAF output signal was 4.53 to 6 volts, was from from idle to > 2800 rpm, then your MAF is unwell!

 

[spiderpig37]

Could you have damaged maf when you removed the
Mesh did the problems start after you fitted the snorkal

 

[stinka]

Possibly. Will refit injectors when I get them back next week. Then order maf

After all the cleaning of the intercooler I have noticed fresh oily marks around where core joins off side shoulder/reservoir bit, this was apparent today after taking off to remove injectors. So this explains my blue smoke issue

Recore the intercooler and I'll be there I reckon

 

[spiderpig37]

when i changed the maf on mine think mine is a bosch i got it from main dealers £80 ish last year didnt think price was bad for dealers and at least it was pucker part