nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - petespage

driving on motorway for 2hrs approx 70 to 80mph in 5th gear, just keeping up with traffic, suddenly lost speed, car decelerated as though no petrol feed. floored accerlerator pedal, engine suddenly kicked in and speed picked up. fault recurred over next 2 hours but dissapeared after 20 min delay thru road incident. tried to reproduce fault conditions but without success. problem was there whether driving up hill, downhill or on the flat. only change to car was half tank petrol filled up with BP ultimate instead of bog standard tesco Preium for return journey. no alarms indicated and wierdest thing was rev meter stayed constant even as acceleration fell?

cronus

nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - Collos25

Just maybe the fuel pump is acting up and a full tank masked the problem, just a thought.

nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - petespage
Thanks for that, had similar thought, ran petrol tank down to almost empty and did journey's at various speeds but could nor reproduce problem, engine has mpfi fuel injection but told they rarely fail and if this was cause fault would be permanent. booked car in for check with mechanic and computer analysis next week, will revert if any news.
nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - petespage
re fault note, had checked but ok, told problem might be spark plugs, they are good for 50,000+ and car only done 33,000 but manual says change at 52,000 or every 5 years whichever is soonest, as car is 07 reg it could be the problem but todate after trying to reproduce fault nothing has happened. been told to keep trying to get fault to show on warning light so that they can see the registered fault with computer. to recap engine started to run rough and had to floor accelerator to kick engine back up to normal. that to me sounded like fuel starvation but it might be plugs.
nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - elekie&a/c doctor
Very much doubt if it is spark plugs.More likely to be a fuel filter issue.When was it last replaced?
nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - petespage
thanks for that. fuel filter has not been changed, the service advice says change the filter at 36,000 miles and car only done 33,000 miles. however, its been a consideration but cannot figure out why the fault has not repeated if it is the filter! my feeling is now to bite bullet and do all three service recomendations @ 5yrs change plugs and timing belt and replace fuel filter (despite 3000 miles to go) expensive but cheaper than buying another car. i like this this car so will push on with it.
nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - sandy56

It does sound like a fuel supply problem, even dirty fuel.

Try using Shell V Power or BP ultimate for a tank or two. If there is no recorded fault on the car then it is difficult to find it.

I found BOSCH service centers to be good.

nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - unthrottled

Forget about the brand of fuel. Engines don't intermittently cut out because they've been fed supermarket fuel, or 95 RON instead of 97 RON.

If there was fuel starvation, the lambda sensor would have probably picked up the problem. If the throttle is electronically operated via a stepper motor (likely at that age) then there may be an electrical problem somewhere between the actuator at the pedal and the butterfly valve in the throttle body.

Like many intermittent electrical problems it may not be easy to isolate. But don't waste your time trying to change fuel.

nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - petespage
thanks for that. on second full tank and still no repeat of fault so intermitancy is a long one (over 2 weeks) when this fault was present no warning light came up on dash so mechanics say it will not have been registered for them to check. mechanic advises keep driving until i get indication of fault so they can see what happening, that is present plan. looking at some prolonged runs of motor but not far from home or garage.
nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - unthrottled

Good luck with that-I hate faults that clear up without being resolved. You can never quite trust the car until it has!

nissan note 1,4 se model. petrol engine 07 reg, - nissan note deceleration - petespage

fault returned proper, very lumpy driving. garage changed oxygen sensor before cat, and also plugs. the ecm warning then came on permenantly. garage decided better if nissan looked at it as sensors were £150 each, they charged me for parts only. nissan had a go, changed oxygen sensor after cat. and problem solved (nissan cost of £300). car seems to be running ok now, not as sprightly as before but could be my imagination or a subtle change in the air/fuel mix. thats it folks. thanks for help.