Hi guys, so I have a Nissan almera 2006 n16 1.5 petrol, she through up a engine light, I went straight to get 

It diagnostics done, and it put up a fault with the camshaft sensor? The guy said it could maybe be a stretched chain, the car is driving perfect full power, no ruff idle, so I got the new sensor(spurious part) replaced it and then the car was driving rough with not much power, so I put the original sensor back in, and it's driving perfect, heads wrecked, there seems to be no sign of the chain having a problem, there is 119000miles on the clock, any help is appreciated

Hi....welcome to the Forum

I would say that you have two faults there.

1. the camshaft sensor may be faulty or if the ECU has adapted to the signals from the old sensor.

2. the mechanic may be right with the stretched chain diagnosis as when the camshaft(s) goes out of synch with the crankshaft because of slack in the chain / belt then this can throw up the fault.

I would certainly get the chain checked before it goes as Nissan timing chains breaking / slipping are a big issue.

Let us know how you get on with it

Cheers  Trevor

Ye I just taught it was strange that with the new sensor it runs rough, I even disconnected the battery,  to reset ecu, the mechanic said it could last years with a stretched chain, like its driving 100% I just don't think it be worth putting 500 quid into it as it's not worth much, do u reckon I should put the new sensor back in and drive it for a while and see if it adapts to it, also what would be the signs of the chain on the way out like surely it affects the drive? Cheers 

Unfortunately, when the chain or tensioner decides to go it will just go and take the engine with it.

If it was me I would fit the old sensor and run the car until it expired....which could be years

1 hour ago, Trevor said:

 Unfortunately, when the chain or tensioner decides to go it will just go and take the engine with it.

If it was me I would fit the old sensor and run the car until it expired....which could be years

yes that's what I intend to do I don't do mad driving I have the old sensor in and it's driving perfect, the advice I got was a lot give problems but they can last quite a long time until it goes, let's hope it's a bit away ha tx for the help 

7 hours ago, Trevor said:

 Unfortunately, when the chain or tensioner decides to go it will just go and take the engine with it.

If it was me I would fit the old sensor and run the car until it expired....which could be years

yes that's what I intend to do I don't do mad driving I have the old sensor in and it's driving perfect, the advice I got was a lot give problems but they can last quite a long time until it goes, let's hope it's a bit away ha tx for the help 

 

and now shes started to drive a bit rough today spluttering under load but needle and idle is perfect 

Probably go on like that for years...but you could try adding some cleaner additive to the fuel...that may help

On 10/1/2017 at 11:43 AM, Trevor said:

 Unfortunately, when the chain or tensioner decides to go it will just go and take the engine with it.

If it was me I would fit the old sensor and run the car until it expired....which could be years

yes that's what I intend to do I don't do mad driving I have the old sensor in and it's driving perfect, the advice I got was a lot give problems but they can last quite a long time until it goes, let's hope it's a bit away ha tx for the help 

 

and now shes started to drive a bit rough today spluttering under load but needle and idle is perfect 

cheers it starting fine and driving ok now very strange tho I may add some cleaner additive