terrano keeps stalling

[paulandkeran]

I am a new member to the site,It would be great if someboby out there could help me out.I have terrano 2.7tdi 1999 vreg ,its starts fine in the moring but when it gets warm it start to stall all the time and it wont rev over 4000rpm also i have to turn the ignation over about six times before it will start again and found out when driving along if i turn ignation off and on again it picks up and will rev at 6000rpm.took the terrano to nissan today they came up with code read fault codes 2 stored con/sleeve pos sensor p1207 and coolant temp sensor p0115 found coolant sensor connector adrift re-connected.check con sleeve pos plug looks ok,at idle speed viewed live data,fault still evident.suspect fault to wiring/pump or pump fault.It would be great if somebody could give tips on fixing this problem before i buy a diesel pump

 

[clivvy]

id be checking the good old CKP sensor myself. These are affected by heat/age, i.e. the older they are, the weaker the magnets become, and this is affected by heat, hence why a car can be fine first thing, and naff when warm.

The CKP on my 98 maverick is located at the front of the engine. Its a small, round black magnet sensor, and you can see it between the belts on the alternator side. Should be one screw holding it in, its a little bit fiddly if you have big hands, but certainly a DIY part. I'd remove it, clean it, check for any marks (should be smooth plastic) re position back into engine an dtrace wire back to connector and check that.

They start to throw a code the worse they get....if you are lucky, yours will be the cheaper CKP, other wise its about £200 ish, give or take a tenner...!

not saying this is definately the problem, but it certainly sounds like it could be, good luck buddy!

 

[clivvy]

ok, should be a pic attached, bit dark, but his is between the belts at the front of the engine...

 

[paulandkeran]

Cheers i will try that tomos

 

[briggie]

i know nuffin , but id try cleaning the maf , costs nowt and could well solve your problem

 

[clivvy]

very true Peter, well worth doing, could easily be a combination, but i suspect he has the Bosch MAF, so cant clean 'em.

reason i think CKP, is the starting issue, and stalling, both can be attributed to a faulty CKP. If the CKP was dead, the car would start, but only just, and it would be rough as hell, and it would certainly stall and have minimum power, i.e. limp home mode!

 

[briggie]

im glad i dont have a ckp sensor or a maf ( i think )

 

[paulandkeran]

yes it goes into limp home mode,but turn ignation on and off and off it goes but it will tic over all day with out a problem

 

[spudd]

whilst stationary boot it to 2k plus let foot off pedal watch how fast rev counter comes down .mine used to cut out doing this.several on here say it should because of sensor on gearbox wrong.its the rotary in the diesel pump cant keep up with demand. since new pump i can rev mine hard stationary and dont cut out.rev counter drops down in 2 stages.

 

[clivvy]

yep, mine was the same, tick over no probs, but stall, for example, when slowing to a juntion, and only ever when engine was at operating temp, so could drive for 10-20 miles when cool. Like many things, it will gradually get worse, its not a sensor that either works, or fails, it can give intermittent fault right through to total failure.

 

[(RIP) PLANK]

I've often wondered if giving the CPS a blast of this would help with identifying the fault :nenau

http://www.maplin.co.uk/freezer-spray-26296

 

[paulandkeran]

just had a look it seems that it does not have a ckp sensor,do i buy a pump as i can get one tomos off same year at cost of 200

 

[paulandkeran]

like spudd said it may be the rotary in the diesel pump cant keep up,but like i said turn ignation on and off it will keep its power and do 80 plus on motor way as long as i keep my foot down as i lift my foot off the accelerater and then put it back on then it goes into limp home mode until i turn ignation on and off again,

 

[spudd]

similar symptoms as mine.your crank position sensor may be at back of engine mine is top of bell housing.next to dipstick is a multi plug follow wire back to bulk head for sensor.

 

[paulandkeran]

cheers will have agood look tomos,also auto electriction coming tomos will let you know how we get on tomos cheer for your help

 

[Timbo_1975]

Zexel / Hitachi - Cam position sensor on the timing case.
Bosch / Bosch - Crank position sensor on the bell housing.

I would agreee that the stalling when hot and reluctance to rev could well be a loss or poor signal from the sensor. These type of inductive sensors often fail when hot.

Get some freezer spray on it when it is playing up and see if the problem goes away breifly.