Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Grrrrrr]

Just checking this makes sense ...

Bit of a nasty turn this evening. Came over the crest of a hill on a twisty-turny lane and the engine just died. Good job I'd been to the toilet before setting off as it was a hairy descent with heavy brakes and heavier steering. Refused to restart. Engine spun but nothing else. No faults codes stored but 2 pending faults: P0705 (gearbox) and P0725 (crank sensor). Fiddled for ages - nothing. Then, 2 hours later it just started. Drove home and almost made it when it died again. Pushed it the last bit home.

Certainly I can see if the crank sensor failed that would stop the engine PDQ. Why only a pending fault though? Presumably the fact it started after a rest infers heat is causing the failure? Is that what you'd expect if the crank-sensor needs replacing?

[ffcgary1]

What engine have you got,
pls update your profile as it will stop others asking, but it sounds like crank senor fault, but dependant to engine it could also be cam sensor.

[symes]

What engine have you got,
pls update your profile as it will stop others asking, but it sounds like crank senor fault, but dependant to engine it could also be cam sensor.

+1

[Entwood]

Just checking this makes sense ...

Bit of a nasty turn this evening. Came over the crest of a hill on a twisty-turny lane and the engine just died. Good job I'd been to the toilet before setting off as it was a hairy descent with heavy brakes and heavier steering. Refused to restart. Engine spun but nothing else. No faults codes stored but 2 pending faults: P0705 (gearbox) and P0725 (crank sensor). Fiddled for ages - nothing. Then, 2 hours later it just started. Drove home and almost made it when it died again. Pushed it the last bit home.

Certainly I can see if the crank sensor failed that would stop the engine PDQ. Why only a pending fault though? Presumably the fact it started after a rest infers heat is causing the failure? Is that what you'd expect if the crank-sensor needs replacing?

P0705 Transmission Range Sensor Circuit malfunction (PRNDL Input)

P0725 Engine Speed input Circuit Malfunction


Whilst the second one "could" be crank sensor related .. the first one is more likely to be a dirty selector switch

A crank sensor failure  is P0019 or P0335, all P07** are transmission codes

http://www.obd-codes.com/trouble_codes/

[cd 2.2]

Just checking this makes sense ...

Bit of a nasty turn this evening. Came over the crest of a hill on a twisty-turny lane and the engine just died. Good job I'd been to the toilet before setting off as it was a hairy descent with heavy brakes and heavier steering. Refused to restart. Engine spun but nothing else. No faults codes stored but 2 pending faults: P0705 (gearbox) and P0725 (crank sensor). Fiddled for ages - nothing. Then, 2 hours later it just started. Drove home and almost made it when it died again. Pushed it the last bit home.

Certainly I can see if the crank sensor failed that would stop the engine PDQ. Why only a pending fault though? Presumably the fact it started after a rest infers heat is causing the failure? Is that what you'd expect if the crank-sensor needs replacing?

P0705 Transmission Range Sensor Circuit malfunction (PRNDL Input)

P0725 Engine Speed input Circuit Malfunction


Whilst the second one "could" be crank sensor related .. the first one is more likely to be a dirty selector switch

A crank sensor failure  is P0019 or P0335, all P07** are transmission codes

http://www.obd-codes.com/trouble_codes/

The gearbox selector switch is a cringe worthy £300 give or take a little from Vx ... I only know this as my dad had one fitted last year when his gearbox selector in the car went all christmas tree on him! Apparently this is the most common sign of a failed selector switch and cleaning them rarely achieves anything other than making a broken unit look very clean while remaining broken in my own experience (but got to be worth a try)

[Grrrrrr]

That's weird. My profile used to have both my cars. Where did that go? Lost in migration, perhaps.

It is the 2.6 CDX (auto, obviously!)

[Grrrrrr]

Seeing as it isn't raining and my mother has the little one I think I'll go out and have a fiddle for a bit.

Half-temped to see if I can just replace the wires on the crank-sensor. There's probably only 2?

[martin42]

Totally wasting your time doing that,just go and buy a new vx sensor,replacing wires isnt going to do a thing...........

[Grrrrrr]

Looks like they're only £30 so you're probably right. Bet the stealers has a whole shelf ready and waiting judging from half the threads on here.

[martin42]

Dont use an aftermarket sensor,they dont last,go to vx where you will get the correct 1 for the car

[TheBoy]

Use a genuine sensor if changing V6 crank sensor.

The symptoms match the crank sensor failure, although the codes do not - I'd expect a 0335.

[TheBoy]

A crank sensor failure  is P0019 or P0335, all P07** are transmission codes

tut tut, you should know better...

2.5/3.0 (and pre 1996 2.0) crank sensor faultcode is 19, not P0019
later 2.0/2.2/2.6/3.2 crank sensor faultcode is P0335

[Entwood]

A crank sensor failure  is P0019 or P0335, all P07** are transmission codes

tut tut, you should know better...

2.5/3.0 (and pre 1996 2.0) crank sensor faultcode is 19, not P0019
later 2.0/2.2/2.6/3.2 crank sensor faultcode is P0335

It might be on the paperclip/pedal checks ... but on a code reader ?? I guess as the non-DBW cars are not fully OBDII compliant a code reader might give incorrect info when used on those cars

I simply went by  http://www.obd-codes.com/trouble_codes .. which I accept is for OBDII cars

[TheBoy]

A crank sensor failure  is P0019 or P0335, all P07** are transmission codes

tut tut, you should know better...

2.5/3.0 (and pre 1996 2.0) crank sensor faultcode is 19, not P0019
later 2.0/2.2/2.6/3.2 crank sensor faultcode is P0335

It might be on the paperclip/pedal checks ... but on a code reader ?? I guess as the non-DBW cars are not fully OBDII compliant a code reader might give incorrect info when used on those cars

I simply went by  http://www.obd-codes.com/trouble_codes .. which I accept is for OBDII cars

Its 19 on any code reader

That website is fairly poor TBH, hence we've provided our own lists. Remember, for many codes (not this one), the code alone is not enough, as the same code can cover multiple faults

[Grrrrrr]

Yes, codes can always be a little obscure. For me the engine timing and gearbox all point at no signal. The fact none were logged as faults but only pending faults seems to imply no definitive code was stored. I'll clear the faults and see if they recur. Not keen on going out and getting dumped somewhere though.

Sensor itself looks easy to get to but the plug I could see at the back of the engine didn't look anything like the one in the maintenance guide. Other end goes into near-side bank of cylinders though so guess it must be the connector? I took a picture but had forgotten you cannot upload directly into one of these messages.