Crank Shaft Posisition Sensor

[jims-terrano]

Right I've read the codes and behold Error 47 CKP.

Looked on the manual and it seems to be located at the top of the engine which really don't seem right unless it's upside down of course.

So any valuable info on where it is and what to do now, oh and how to get to it.


Jim T

 

[jims-terrano]

Nissan dealer just told me that I don't have one.:nenau

Jim T

 

[clivvy]

HEY!!

i cant believe it, i have the exact same issue!!!

andrew pages can get them, about £70 last quote i got. very easy to get to. i swapped mine for a used one, but error code remains. so its either the wiring, or another duff ckp sensor.

my old sensor definately had a mark on it, but the new used one didnt, but thats not to say it isnt faulty. Apparently, if its the wiring, you just have to trace it back to ecu. i checked my wiring engine side, all looks ok but i dont know how to check continuity, so thats somethign you could look at? the ckp is dead easy to see. open bonnet, look between the belst where the fan is. youll see a thin wire, fits into engien block, its dark but its there, little black cynlinder sensor, probaly one bolt holding it in....

 

[jims-terrano]

OK sensor that I just found is on the front of the engine towards the passenger side. It has a thin wire connected to it that comes up to the top on the drivers side in some grey sleeving to a connector. The connector is on the end of a metal bracket next to the glow plug connector. The metal bracket has approx 4 or 5 connectors on it. The one that I suspect is the CKP sensor wire is directly next to the two heater hoses.

Am I right?

Jim T

 

[makeitfit]

Yep that's the little bugger
Changed mine recently and it made no bloody difference
I'm convinced there is something else on these trucks that throws up the same error code :augie
Good luck

 

[jims-terrano]

It's a bugger when it throws a wobbler cos it don't half give a jerk about.

Jim T

 

[clivvy]

BUT, if you read the code, there is a strong suggestion that its an incorrect signal-so thats either the sensor or the wiring! somehow, we need to test the wireing, and if possible, check the ecu side. I am still not sure how bad this error actually is. I have had it ages, and although I havent driven mine for a long time, i was getting the mil light plus slight loss of power for just a few seconds, and thats after engine is warmed up.

garages will tell you it cant be the ckp, because "it wouldnt start otherwise" but thats bollocks, because the CKP also sends signals for the fuel injection timing, so its my thinking that if the signal is incorrect, the the timing is going to miss...

No idea what the fix is. I havent tried a brand new sensor yet butI will be soon. A second hand one didnt work, and my worry is thats its either the wiring, or as Makeitfit says, something else confusing the code.

 

[makeitfit]

Just a quick summary of my sorry CKP job
I tested three, mine, my mates and a second hand one. All were different from the stated resistance:augie My mates one which was working fine in his truck made no difference to the performance of mine, neither did the second hand one. BUT as it made the MIL go out I left the s/h one in.
#I also tested the continuity back to the ecu and found no fault.
So I dont know whats going on, bloody electrickery

 

[sidsid06]

replace the crank shaft sensor on mine as it had a cough a while ago!!! and it mayed no differance.. the old 1 was covered in crap tho!!!still have the old 1 if you would like to try it in your motor? if yours is the same as a year 2000 2.7 td! my new1 cost me 140 quid from nissan as they were the only people i could get 1 from

 

[clivvy]

but when you fitted the one that stopped the mil light, did the code clear?

 

[sidsid06]

yes the mil light stoped coming on:thumbs but i think just cleaning the old 1 would have done the same.... the amount of crap on it could not belive it!!! i read some ware that some nissans when assembled the mechanics were wareing gloves which had teflon in them so when handling the fly wheel teflon suck to it and then the magnit in the sensor would attract the teflon!! i could not belive how much crap was on my sensor

 

[jims-terrano]

So could there be crap stuck on the bit that the sensor senses?

Jim T

 

[sidsid06]

So could there be crap stuck on the bit that the sensor senses?

Jim T

yes!! just take it out and have a look!!!! as the sensor is magnet.... easy to do just held with 1 nut if the same as mine then pull the sensor out!!! if you like to try my old 1 just say and i will post it too you:thumbs if its the same!!!!!!?

 

[rayf3262]

Just a suggestion:
This fault can be caused by a poor or intermittent earth connection between the engine block & the ECM.
You could try connecting a new additional ground cable between the engine & a GOOD ground point on the chassis and see if it helps.
R

 

[clivvy]

Just a suggestion:
This fault can be caused by a poor or intermittent earth connection between the engine block & the ECM.
You could try connecting a new additional ground cable between the engine & a GOOD ground point on the chassis and see if it helps.
R

interesting point, I had corroded earth wires, not sure if I have done them all, any clever way to trace the one to the ECM? If it's possible that a dodgy eart wire can cause this fault then it's likely a problem with mine considering the mess mine were in...jim, I'll check mine this week and let you know...

 

[clivvy]

Dammit, now mine is warmed through it's stalling!!

 

[jims-terrano]

Oh bugger!!!!!

If I can muster the enthusiasm I might try cleaning mine this afternoon.

Jim T

 

[clivvy]

ok, so I had a crappy day Maverick wise. I had to use it for work see, a trip to Dewsbury then a trip back to HUdds. Upon entering the town centre the mil light came on and was a bit juddery, then stalled when I pulled over. grrr. Was ok after that, 1.5 hours later.

REALLY need to know a fix for this, I get code 47 like Jim, but I changed my sensor for another used one, no difference, is it possible that the used one is also faulty??? Is there a test you can do on the actual sensor?

like Jim, I need some help, because I cant trust the car with randmon problem like this!

 

[sidsid06]

ok, so I had a crappy day Maverick wise. I had to use it for work see, a trip to Dewsbury then a trip back to HUdds. Upon entering the town centre the mil light came on and was a bit juddery, then stalled when I pulled over. grrr. Was ok after that, 1.5 hours later.

REALLY need to know a fix for this, I get code 47 like Jim, but I changed my sensor for another used one, no difference, is it possible that the used one is also faulty??? Is there a test you can do on the actual sensor?

like Jim, I need some help, because I cant trust the car with randmon problem like this!

!!!when i changed the sensor in mine it made no differance to the problem i was having!!! mine turned out to be shit fuel and air filter!! sorry if this dose not help you and your truck..but i know what you mean by grrrrrrrrrrrrrrrrr mine almost got the big hammer

 

[clivvy]

I get the impression changing my sensor wont help, but I still have code 47. My old CKP wasnt really dirty, just a bit greasy as you would expect, and the "new" one wa sfitted clean-still got the code, still got the problem.

Problem ONLY occurs when engine is warmed up, so after say, 15 miles or so? Then it will continue to paddy.

My air filter is a bit dirty, so I will change it, but I dont think thats the issue. My MAF is fine, and the fuel filter is newish (but will be changed soon). Other than this MIL problem, car runs fine, if a little low when idling, still runs ok when cold.

??

Jim, does yours stall when warmed up and the mil light comes on?