Engine Cutting Out

Having watched the clip I would say it does not fit the symptoms of my A2. The guy says about the engine gradually dying out. Mine just stops in an instant. Had a couple more occasions over the weekend when the engine appeared to have stopped but turning the key to off and back on the engine is still running. It's not like that every time. The other times are just the same except that the engine actually does stop and has to be re started. I always try the first one now to see if the engine has actually stopped, because it makes a terrible noise if you try to re start it when it is still running '
 
Have I got this correct - you feel that the engine may have stopped but on trying to start it you hear the starter motor screech as the engine was in fact running ? If so was the Rev counter showing it idling or at zero rpm ?
 
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My symptoms are the same as yours but it does fit. The engine stops suddenly. It cannot be bump started which would indicate no spark or no fuel. Having spoken to my engineer he has confirmed either ECU, fuel filter or this as I have already tested and ruled out the fuel pump relay. My engine requires an ignition off / on before it will restart and then does so without logging any faults. As per the vid one of the few things that the ECU doesn't have sensors for is the fuel pump and fuel pressure. I will get to the bottom of this when I have time but the CS is getting the TLC this week. Good luck with your resolution I'll be sure and post mine when I get it.


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a2sumo. Yes. That's right. All the same symptoms as when the engine really does cut out. Sometimes the engine actually has cut out. I just have to turn the Ignition Key to Off then re start the engine. Other times it became obvious that the engine had not actually stopped. There is the same jolt as when the engine does stop and yes the Rev Counter goes to Zero but if I try to re start the engine it screeches because the engine is in fact still running. I now never try to re start straight away before finding out, as I do not want to wreck the Starter Motor and Ring Gear. I dip the Clutch, turn the Ignition Key to Off then back on. Hey presto the Rev Counter shows Revs again. The Engine has not stopped. As I said, the other times it has stopped so I have to re start it. Hard to believe this story all began with the RAC changing number 4 cylinder ignition coil !
 
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Same problem for me apart from if I dip the clutch I have no issue restarting.


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Rather odd it shows zero revs but is actually running. Im not sure if the engine uses the pulse from the crank sensor for rpm indication but as was suggested the crank sensor when failing behaves in this manner.
Regarding feeling issues i would have expected to see lean running errors or injector pulse threshold reached if it was unable to supply enough fuel.Good luck Mike
 
Just to confirm. My engine is not running but is turning over in gear and will not bump start but on ignition cycle starts without fault. You sound like you have a different issue.


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Maybe I will ask Harpers Cumbria to fit a new Crankshaft Speed Sensor. They expected to find a Crankshaft Speed Sensor Fault when I first asked them to diagnose the fault. As I said before, they are reluctant to get me to spend the money on that when they have no proof that is the fault. It is just their gut feeling.
 
Has anyone fitted a new Crankshaft Sensor from Euro Car Parts to a 1.4 Petrol ? They do a FACET brand one discounted to £42.49 However at the moment they have another 25% off everything making it only £31.87 Should that be OK ?
 
'66Beetle said:
Has anyone fitted a new Crankshaft Sensor from Euro Car Parts to a 1.4 Petrol ? They do a FACET brand one discounted to £42.49 However at the moment they have another 25% off everything making it only £31.87 Should that be OK ?
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I have had no issues with Facet parts or Euro Car Parts (I have ordered lots)
and think of it this way. If it fixes the fault it is well worth it. If the fault remains you have only lost the minimum amount.

I would say yes, go for it. It is worth it just to eliminate (or otherwise) this annoying fault you are experiencing.

Steve B
 
Ordered Crankshaft Speed Sensor £31.87 from Euro. Free Delivery. Will let you know how it goes after fitting.
 
'66Beetle said:
Ordered Crankshaft Speed Sensor £31.87 from Euro. Free Delivery. Will let you know how it goes after fitting.
Click to expand...


I think that there are MANY fingers crossed for you, we all hope this sorts it for you. We can understand how it feels and you get 10 out of 10 for your patience and perceverance.

The very best of luck!!

Steve B
 
I can confirm in my case at least that I have now excluded the Lambda sensor


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Crank Speed Sensor is fitted now. Will let you know. Local garage who fitted it said I should have fitted another 3 new Ignition Coils. Not just the onetbat failed. Is that just rubbish, or is there anything in it please ?
 
Didn't work.

Had great hopes but Engine Cut Out about 22 Miles on the new Crankshaft Speed Sensor !

What do we try next ?
 
'66Beetle said:
Didn't work.

Had great hopes but Engine Cut Out about 22 Miles on the new Crankshaft Speed Sensor !

What do we try next ?
Click to expand...

you must be very disappointed.

Have ve you tried changing the fuel filter yet, it sounds like you have probably tried everything.

Steve B
 
In terms of the coils it is usually the case that if 1 goes the others will not be far behind it, however the opposite can also happen. I certainly replaced only 1 but am prepared to do the others should the need arise.

I am now looking at the alternator as although it was only replaced last year (prior to my ownership) it was suspiciously cheap at £80 (having replaced it on my other A2 myself I know the price). It could be this was a recon part or a low quality item but I will check the part numbers to ensure what was fitted is fit for the job. Upon checking the voltages they are all over the place but the warranty on the part ran out..... drumroll - yesterday!!! :mad:

So at present I'm in a holding pattern fixing other issues until I have a solid platform to work with then I'll get back to the cutting out issue. I am committed to getting this fixed and will update here when I get further.
 
Don't know about the Alternator theory, unless overcharging makes the Engine Cut Out ? When the Alternator stopped charging on my A2 a few years ago I just charged the Battery up and drove the car to a good Auto Electrician about 15 Miles away, effectively driving with no Alternator. There was no problem with that. He took it off, fitted a new Regulator, and re fitted it. All for around £80 inc Parts and Labour, which was nice, as Audi wanted about £350 for an Alternator and another £350 to fit it !

Talking about Fault Codes, is that the Fault with my A2 ? It does not record Fault Codes ?
 
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It may be of note, or maybe not ? that since the engine cut out approx 22 Miles after fitting the new Crankshaft Speed Sensor 10 days ago, August 2nd, it has NOT Cut Out again ......... Yet !

Does the ECU self recalibrate to new sensors ?

Did the A2 just want to prove it could still Cut Out if it wanted to ?

Am I just grasping at straws again ?
 
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