Car cutting out
Discussion
Any thoughts on this?
2013 VW Golf Petrol Manual
Car giving out black smoke
Took it to 1 garage who replaced plugs but couldn't diagnose
Took it to a VW/Skoda specialist but they couldn't diagnose
Took it to VW main dealer - they have replaced injectors which has stopped the smoke but the car cuts out unless you keep your foot on the accelerator (on startup).
VW basically saying they are not sure what it is but car can be kept there and they will look at it when they can but basically doesn't look like they can do much. The car has been with them for weeks. They also mentioned another car they have in has the same problem.
Spoke to another garage next door to VW and they said if the car is coming on and cutting out its possibly an electrical problem and gave the details of an auto electrician to contact
Due to the large bill at VW its almost a case of do we scrap the car.
Final shot may be to take it to an auto electrician and hope for the best. It does perhaps make sense it could be an electric problem that has been missed by 3 mechanics.
Does anyone have any insight as to what it might be?
2013 VW Golf Petrol Manual
Car giving out black smoke
Took it to 1 garage who replaced plugs but couldn't diagnose
Took it to a VW/Skoda specialist but they couldn't diagnose
Took it to VW main dealer - they have replaced injectors which has stopped the smoke but the car cuts out unless you keep your foot on the accelerator (on startup).
VW basically saying they are not sure what it is but car can be kept there and they will look at it when they can but basically doesn't look like they can do much. The car has been with them for weeks. They also mentioned another car they have in has the same problem.
Spoke to another garage next door to VW and they said if the car is coming on and cutting out its possibly an electrical problem and gave the details of an auto electrician to contact
Due to the large bill at VW its almost a case of do we scrap the car.
Final shot may be to take it to an auto electrician and hope for the best. It does perhaps make sense it could be an electric problem that has been missed by 3 mechanics.
Does anyone have any insight as to what it might be?
Which engine and model, specifically, is it?
I assume the dealer are out of ideas because there's no easy fault codes, could be a few things like the low or high pressure fuel pump, pressure regulator, could be electronic (rail pressure sensor if there is one), but to make any progress you'll need a proper mechanic and not a lazy arse to look at it.
I assume the dealer are out of ideas because there's no easy fault codes, could be a few things like the low or high pressure fuel pump, pressure regulator, could be electronic (rail pressure sensor if there is one), but to make any progress you'll need a proper mechanic and not a lazy arse to look at it.
More questions? Just bear in mind the more information you can provide the more likely people can come up with an answer.
When did it start kicking out black smoke? Was this all of a sudden or has it been building up slowly?
Does it only cut out when it's cold, you mention on startup, so once started, after a while will it idle ok?
Black smoke from a petrol engine generally indicates fuel/air ratio is wrong, so either not enough air (blocked air filter) or too much fuel?
When did it start kicking out black smoke? Was this all of a sudden or has it been building up slowly?
Does it only cut out when it's cold, you mention on startup, so once started, after a while will it idle ok?
Black smoke from a petrol engine generally indicates fuel/air ratio is wrong, so either not enough air (blocked air filter) or too much fuel?
Volkswagen Golf Hatchback 1.4 TSI Bluemotion Tech SE 5d 2013/63
Its my brothers car he says
The car started jerking and was revving itself
The following day he put fuel in and the car started putting out black smoke so he stopped using it
VW say they have resolved the black smoke (they have installed 4 fuel injectors I believe). They say that the car will start but you need to keep your foot on the gas to keep the temp up otherwise it stalls
The link above suggests it could be a mechanical or electrical problem.
Surely the garages would have checked the air filter?
Its my brothers car he says
The car started jerking and was revving itself
The following day he put fuel in and the car started putting out black smoke so he stopped using it
VW say they have resolved the black smoke (they have installed 4 fuel injectors I believe). They say that the car will start but you need to keep your foot on the gas to keep the temp up otherwise it stalls
The link above suggests it could be a mechanical or electrical problem.
Surely the garages would have checked the air filter?
There are a couple of suggestions on here
https://vwtuning.co/vw-1-4-tsi-engine-problems/
Basically ignition coils and O2 sensors, I would have thought though that if they were bad you would get the EML on and a relevant code.
Is it showing any codes at the moment? If so what are they?
https://vwtuning.co/vw-1-4-tsi-engine-problems/
Basically ignition coils and O2 sensors, I would have thought though that if they were bad you would get the EML on and a relevant code.
Is it showing any codes at the moment? If so what are they?
Olivergt said:
There are a couple of suggestions on here
https://vwtuning.co/vw-1-4-tsi-engine-problems/
Basically ignition coils and O2 sensors, I would have thought though that if they were bad you would get the EML on and a relevant code.
Is it showing any codes at the moment? If so what are they?
Not surehttps://vwtuning.co/vw-1-4-tsi-engine-problems/
Basically ignition coils and O2 sensors, I would have thought though that if they were bad you would get the EML on and a relevant code.
Is it showing any codes at the moment? If so what are they?
I briefly spoke to the VW man yesterday and he didn't mention any codes - I would have thought they would have tried to fix anything with a code on it.
Black smoke makes little sense on a petrol car. And even less sense on a direct injection engine.
Surely there is some history to this problem ? seems unlikely one day it would be fine, then suddenly it's that bad ?
Really you need to find a competent garage, which do seem more than a rarity these days.
Surely there is some history to this problem ? seems unlikely one day it would be fine, then suddenly it's that bad ?
Really you need to find a competent garage, which do seem more than a rarity these days.
SystemOfAFrown said:
It's a pretty classic sign of overfueling on a petrol car.
Been building and tuning cars for 30+ years, and never had it. Even with the richest crudely setup carburettors.On a direct injection car with cat etc etc.....I would think it should be all but impossible for almost any fuel related smoke of any colour
The only time I've ever had anything remotely close to blackness, was when using some toluene in the fuel. It was just filthy though
If it needs throttle to keep it running until warm, then it could be something as simple as a faulty coolant temperature sensor making the ECU think the engine is already warm and leaning off the fuelling. Any proper mechanic should be able to check this by looking at live data on a diagnostic machine.
stevieturbo said:
Been building and tuning cars for 30+ years, and never had it. Even with the richest crudely setup carburettors.
On a direct injection car with cat etc etc.....I would think it should be all but impossible for almost any fuel related smoke of any colour
The only time I've ever had anything remotely close to blackness, was when using some toluene in the fuel. It was just filthy though
I'm quite surprised by this, black smoke on hard acceleration is a very typical sign of an overly rich mixture on a petrol engine. DI may well be less prone to this, but I've seen it numerous times on carburettor and port injection engines. It does need to be significantly rich to cause this though.On a direct injection car with cat etc etc.....I would think it should be all but impossible for almost any fuel related smoke of any colour
The only time I've ever had anything remotely close to blackness, was when using some toluene in the fuel. It was just filthy though
SystemOfAFrown said:
I'm quite surprised by this, black smoke on hard acceleration is a very typical sign of an overly rich mixture on a petrol engine. DI may well be less prone to this, but I've seen it numerous times on carburettor and port injection engines. It does need to be significantly rich to cause this though.
Even down as low as most widebands will read, never had smoke. So it would need to be utterly diabolically insanely rich for any chances of it to happenSo rich it would be running like a complete pig, and on a modern car, definitely destroying the catalytic converter.
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