No power when accelerating

[jaylufc17]

Done a lot of motorway driving this weekend was on the way back home on the motorway and all of a sudden there's was no power when accelerating... any ideas?

Stage 1 map on car however still feels like it hasn't less power then stock

[AJP]

Any lights on the dash?

Was full power restored?

Any odd noises when you tried to accelerate?

Any intermittent hiccups before this?

Could really be any number of things; limp mode, misfire, fuel cut, the list goes on. You need to get it scanned first. If you can find a forum member with VCDS that'll take a tenner for their help it'd be a good start.

If there aren't any fault codes stored a little live logging session with VCDS will scratch the surface further.

Until then it's guesswork. If the fault hasn't cleared I'd advise keeping the driving to a minimum and make a scan your priority. If you need help deciphering codes there are plenty of knowledgeable bods on here.

ETA: Have a look around the engine to see if anything looks amiss; hoses, lines etc. Could be you've popped off a boost pipe or something.

[jaylufc17]

no lights, still no power, no noises or hiccups that i can imagine...

had my cruise control and mfsw buttons installed today by @RetroRaz however the car was perfectly fine after this and all faults were cleared

aint got a clue about this vcds stuff lol... i was just going to take it to vw to see what they would say and go from there

[jaylufc17]

accelerator just doesnt seem to respond

[AJP]

VW will charge you through the arse just for scanning it. And if you trust them to fix whatever they diagnose you'll also be paying well over the odds.

If Raz is nearby maybe he can help? It's your call, but you could end up spending hundreds for a 60 quid job.

[jaylufc17]

yes ill ask him... true actually about vw...

ive googled it and few people have said it could be DV... what do i need to do if it is/is this visible to see without taking half engine out lol?

[AJP]

yes ill ask him... true actually about vw...

ive googled it and few people have said it could be DV... what do i need to do if it is/is this visible to see without taking half engine out lol?

Depends if you're k03 or k04, they're in different places. If k03 you can get to it through the offside wheel arch. Jack car up, axle stands, liner off etc. I'm sure there are plenty of guides on youtube. K04 cars have the dv at the front of the engine iirc.

If it is the dv, it'll probably still boost a little bit, but you'll hear it hissing quite loudly. It'll feel like you're about 40-50bhp down on power rather than no power whatsoever. And it might not trigger a fault code. If you haven't renewed your dv with there's a fair chance yours is split or on its way out anyway, even if it isn't the cause of the current problem. It's good practice to renew to either a VW revision G or a GFB DV+. The GFB valve is more expensive but is theoretically a better long term solution. I'm on a G and it's holding Stage 2 boost fine though.

[jaylufc17]

im ko3... appreciate the help... ill see if i can hear the hissing on way to work tomorrow.

will most likely buy one and cam follower and get someone to fit this. if anyone knows anyone in Birmingham or midlands please let me know

[AJP]

No worries mate, hope you get it fixed. Think there's a VCDS register on facebook (although I'm not on fb so can't confirm), or failing that stick a quick post up on here and see if anyone can help you with a scan for a few quid.

Worth putting in a new pcv while you're at it too; revision R is the latest I think. Preventative maintenance is always a good idea.

[jaylufc17]

thanks will do

yes was thinking to do cam follower, pcv and dv all at same time before minor service in jan

[AJP]

Sounds good to me

[bonelorry]

VW will charge you through the arse just for scanning it. And if you trust them to fix whatever they diagnose you'll also be paying well over the odds.

£95 for a full DIAG I was quoted last Week from VW.