Throttle position sensor anomally !!

[nipagu7]

A while ago I had a an odd issue with the car (2011 CRD gu7 ) . I drove it to the shops , was there for about an hour , then went to drive home . the car started ok but when I tried to drive off it would not accelerate until the accelerator had been pushed down about 20mm . I stopped the car and revved it whilst not under load and it seemed fine , I then continued on home and it played up the hole way . Even when at crusing speed I had to hold the accelorator down about 20mm further than normal. The next time I drove it ,it was back to normal. I told the nissan guys when it went in for its first service , they said they could not fault it and the computer had not logged any codes . It was all good for a while but it played up again a couple of days ago ,but this time I only had to push the pedal down about 5-10mm more than normal ( plays havic judging gear changes). the next time I drove it - all good . I was thinking about this today and realised that when I started the car I'm sure that I used some throttle ( a hangover from my old commodore ) . I was wondering whether this would upset the cars computer reading of the throttle position sensor . When I get the chance I will try to induce it deliberately to see if this is what is actually happening .In the meantime if anyone could shed some light on this little mistery I would much appreciatel it .

[Maxhead]

Sounds like what mine does. Very, very intermettant issue but bloody annoying. Switch the car off and on and issue disappears.
I'll tell Nissan but doubt they can do anything if it's not playing up and then they probably would say its normal


..........on the move

[nipagu7]

It might possibly be normal Nisshead . What I think might be happening is if the accelerator pedal is pushed when the key is turned the computer senses the position of the pedal as being the idle position even though it is partly depressed . Not a big deal , just a pain in the butt to have to remember not to touch the accelerator pedal when starting the car . Also bit of a cheap assed design if this is the case .

[Maxhead]

Yeah, will check it out tomorrow and try and start with the pedal half way to see what happens but I doubt that's what it is. I know one thing though, it's annoying when towing .....hahah


..........on the move

[nipagu7]

Well I did a few tests today but could not replicate the problem so for now the mystey continues .

[threedogs]

Would it help to disconnect the battery overnight???

[Jim-m-72]

Hi guys I have this problem too with a gu 8 whilst driving along it will lose 10 - 15 mm of pedal when your driving with cruise control on or off it's random Nissan have replaced the pedal but the problem is still there does anyone know what is the cause of this because there is no answer from Nissan.
Jim

[nipagu7]

Hi jim-m-72
This problem ocurred 2/3 more times again back in august and once in november but has not happened since. There was another post on here where someone had a similar problem and took the car back to nissan who said they could find no fault , but while they were discussing it with the nissan techs he made the fault happen in front of them ( i think by pushing the throttle peddle sideways ) nissan then changed the peddle assembley . I'm sorry i can't remember whose post or any more details as of yet , but if i can iwill let you know

[Steve4wdin]

I also have this issue with my 2011 CRD. I have replicated this by starting to let clutch out with no accelerater. Yes it is a pain I have to book mine in for a service and will mention to Nissan but doubt if they will help.

[Coldcomfort]

My GU8 has done the same thing. I think that it might be related to where the throttle is at ignition on time. I think that when it has happened to me I might have had my foot resting on the accelerator when the ig switch was turned on. I did a little experiment and I did manage to replicate the issue. To fix it I just switched the engine off, waited a few seconds and restarted it. Not sure if this a was a coincidence or not.