Hi all,

 

My vRS is at 130k on the clock (I bought it at 113) and it's been faultless. It covers 100 miles a day, every day. It's 100% standard and not been remapped.

 

However, it's recently developed an intermittent loss of power at motorway speed, where it'll momentarily lose drive for a second or two, before breathing back into life. It's done this on three occasions in the last couple of weeks, each when I've covered around 40 miles and been driving for 50 minutes or so continuously. I'm not sure if it's coincidental, but it occurs when I'm just about to hit the red on the fuel gauge, before the warning light sounds and gives you a heart attack. 

 

It boosts great, no warning lights or strange noises. Initially, it done it while cruise control was engaged, but today it's stuttered with my foot on the pedal. It's just had an oil & filter change (Platinum) and I replaced the coil packs when I bought the car, along with spark plugs. It sometimes has a bit of an idle judder, but I wouldn't assume that the problems are one and the same.

 

I've looked around and it seems that the engine speed sensor could be the culprit, or possibly the MAF. Is it worth getting it on diagnostic, even though its not throwing up any warning lights? I have no idea when the fuel filter was last changed. Could the low fuel level result in a lower pressure head and it struggles to draw any though? I don't always notice the fuel pump priming when I open the door, even when it's been left over night.

 

Your thoughts or recommendations would be appreciated.

 

Cheers,

Keith

Get it scanned. Not every fault brings up a light. But if you will have to pay for a scan one simple easy way of testing the maf is to unplug it and drive. If it does the same its not maf if it drives better it is the maf being the problem. No boost leaks. I would change the filter if it hasnt been changed for ever.

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Well, the description made me think of a fuel pressure or Throttle Position Sensor issue, so I'd start by checking when the fuel filter was last changed.

Exactly what I was thinking, fuel filter was looking good to me too. When do you get the loss of power, on the throttle and accelerating, or cruising and gently accelerating?.

Fuel filter is a cheap easy place to start. Watch the clips though (someone had to mention them!)

Thanks for the replies, all.

 

It's generally been while cruising, but this morning I was decelerating so under very light throttle as I exited a slip road.

 

I have no idea when the fuel filter was last changed. I'll pick one up from TPS on my way home and get it fitted. Already heard a few horror stories about the clips.

 

Odd that it's happened twice in the same place, with a similar fuel level.

Worth a shout, and some cable ties as chances are the jubilee clip has rusted up.

 

The clips though are easy enough if you are careful with a flat bladed screwdriver

Fuel filter is a cheap easy place to start. Watch the clips though (someone had to mention them!)

 

Why what's wrong with the clip's      

Why what's wrong with the clip's      

At least they aren't as bad as those hateful spawn of Satan's hardware shop oem hose clips in the engine bay I suppose

Fuel filter is a cheap easy place to start. Watch the clips though (someone had to mention them!)

Nooooo please, not again

Ha, I'm not feeling the love for these clips.

 

Fuel filter changed - only took a couple of minutes. Clips were a bit grubby, but teflon spray soon sorted that, came apart and went back together no problem.

 

Thankfully it had been changed at some point in it's past, so I didn't have a corroded jubilee clip to contend with. Worthwhile job when it's £6 for a genuine filter.

 

Hard to tell how many years service the previous had seen, but it was an aftermarket unit. It's covered around 100 miles since and a continuous 50 mile / 1 hour drive this morning without a hiccup. See what happens over the next few days and hopefully get it on VAGCOM in the meantime.

 

Cheers.

Well did the fuel filter sort the problem?

I've the same symptoms....

Hi all,

 

My vRS is at 130k on the clock (I bought it at 113) and it's been faultless. It covers 100 miles a day, every day. It's 100% standard and not been remapped.

 

However, it's recently developed an intermittent loss of power at motorway speed, where it'll momentarily lose drive for a second or two, before breathing back into life. It's done this on three occasions in the last couple of weeks, each when I've covered around 40 miles and been driving for 50 minutes or so continuously. I'm not sure if it's coincidental, but it occurs when I'm just about to hit the red on the fuel gauge, before the warning light sounds and gives you a heart attack. 

 

It boosts great, no warning lights or strange noises. Initially, it done it while cruise control was engaged, but today it's stuttered with my foot on the pedal. It's just had an oil & filter change (Platinum) and I replaced the coil packs when I bought the car, along with spark plugs. It sometimes has a bit of an idle judder, but I wouldn't assume that the problems are one and the same.

 

I've looked around and it seems that the engine speed sensor could be the culprit, or possibly the MAF. Is it worth getting it on diagnostic, even though its not throwing up any warning lights? I have no idea when the fuel filter was last changed. Could the low fuel level result in a lower pressure head and it struggles to draw any though? I don't always notice the fuel pump priming when I open the door, even when it's been left over night.

 

Your thoughts or recommendations would be appreciated.

 

Cheers,

Keith

 

It must be that time of the year! 1 week a go my Crank sensor broke (speed sensor). I changed it and now it's running as smooth as ever. I had the exact same symptoms as you, it was showing signs of breaking 1 week prior to the car stalling whilst driving and becoming almost impossible to start. If I were you I'd get it changed now before the stalling starts. 

 

Also to note: I got the 16706 fault code and the EPC light came on when my car played up. 

 

EDIT - I also changed my fuel filter prior to this, but it didn't make a difference.

Edited 15 June, 201610 yr by Martin191