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Discussion Starter #1
I'm getting a loss of power on my 1.6 diesel civic gen 9. It happens occasionally but recently has become more frequent. It feels like the clutch slipped or a problem with the fuel feed either fuel pump or injector issue. Car has done 25k miles and still under warranty. Taken it to an authorised/franchised dealer 3 times but they said they found nothing. Little concerned that my warranty end soon but I've reported this to them several times over the course of a year. Any advice please?

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Please can you explain is this from a standstill? or rolling if so what gear.

I have noticed it only when the engine is cold, its more of a lag.
Also what fuel do you use? and do you to run it low on fuel keep in mind with the colder temperature diesel can wax especially if you are low its slower to circulate.

Check when it was last serviced? Clogged air filter, or fuel filter.
Are the brakes binding strangely test it on a slight hill city assist can also hold the car back on acceleration making it feel like loss of power.
 

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DPF ?

25k miles indicates a low mileage diesel.

As somebody mentioned a while ago it might just need an 'Italian tune up'.

However, without any location info in your 'panel' difficult to point you to another dealer to double check. Not all dealers are equal.
 

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Discussion Starter #4
It happens in any gear. I’m in north London. The car was just serviced and it’s still happening. Happens on flat and hills. About two weeks ago the engine cut out completely after pulling away from stationary. It feels like the engine is being starved of fuel for a split second. Could you recommend another dealer please?
 

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My old Ford Fiesta I used BP ultimate. Then I tried some Shell, after driving for about 15 minutes it would suddenly start acting like it was going to stall. Have you swapped fuel brands?
Use the same or different filling stations.
Do you run it down to near empty on a regular basis. Clogged fuel filter? Or can you hear fuel pump. If it's loud it maybe on its last legs.
Have you tried one of those fuel/injector cleaner additives. Honda sell one or millers. Might be worth putting some in then going for a Italian tune up type run.



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Discussion Starter #7
Thanks... I cant hear the fuel pump. I'll give the fuel additive a go. I do use different brands but the fault was there when I got the car (bought with 8K miles).
 

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Thanks... I cant hear the fuel pump. I'll give the fuel additive a go. I do use different brands but the fault was there when I got the car (bought with 8K miles).


Maybe that's why they sold it. Unable to solve and got fed up. I'd definitely give the fuel tank/injector cleaner a go. Plus try some high spec diesel. BP ultimate, esso or shell equivalent along with a good run out. Italian style.


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Discussion Starter #10
I would have thought that a misfire caused by a fuel supply issue from the pump or faulty injector would generate a code? The dealer said no codes were recorded...
 

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Just looking through my manual. It states if sudden loss of power check coolant level in expansion tank. Plus if cold check radiator to see if full (petrol only). If both correct test to see if you can starts when engine hot. If it doesn't off to dealer. Check to see if your temp gauge goes down with fan running.
Just a game of elimination.


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I would have thought that a misfire caused by......... a faulty injector would generate a code?
It does. I had two injectors changes, thankfully under guarantee, on my brand spanking Accord 2.2 within 18 months. They both threw fault codes.

The first symptoms were a slight hesitation (misfire) and on a several of occasions, a complete stop of the engine. It did this on me a couple of times.
The car did not go into limp mode after a restart, gut the EM light stayed on.

I assumed that Honda in their wisdom thought that shutting down the engine in the outside lane of a busy motorway with subsequent loss of power steering etc, was a much better option that tolerating a few misfires.
I part exchanged it at quite a loss for my current Civic. But I completely lost confidence in the car so it had to go.
 

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Have you got a dashcam? If not, It may be worth grabbing one - It'd give you something to document jerks & stalls; Evidence that any dealer will need to forward a warranty claim with Honda, Preferably get one with audio recording so the cutout can be heard.
 

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Discussion Starter #14
Thanks for the suggestion but unfortunately I don't have a dashcam. Even if I did I don't think you'd be able to clearly show the problem because it only lasts for a split second. It feels like you are lifting you foot off the accelerator then putting it back on. If this happened once in a blue moon I could live with it but it's becoming more frequent. When the engine cut out, it gave me a heart attack. Thankfully it was at low speed and I was able to restart the car without the person behind me complaining or going into the back of me.

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Sound exactly the same as the problem I had with my Accord.
An mine it was just one cylinder misfiring once occasionally. The first episode was No 1 and the second time it was No 4. In both instances, the misfiring was present for a few weeks before the engine stopped without warning.
 
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