No boost!

[rickyjones1209]

You know that slightly uncontrollable surge of power you get from coming on boost? Well I seemed to be missing exactly that today when out in the car

Last week I felt I needed to be slightly heavier with the right foot to get the response I would normally expect by driving the car as i usually do. Because it happened in the week on the work journey I didnt think anything of it and it could have been normal but I just got the feeling something wasn't right. My instinct prove right as the engine management light came on the following day for about 2 days and then the coil packs failed. Or should I say 2 of them did according to the AA man. Even after replacing the 2 packs at the side of the road (costing £90!) the light stayed on anyway. The guy told me it should go off soon.

Anyway, after doing some research I found that coils are prone to going in quick succession so today i got the other two replaced to save any roadside antics that may have occurred. Again the EML has stayed on but i was told that really i would need to disconnect the battery or get a machine to turn the light off.

I was driving enthusiastically on the way home and the car felt sound. coming on boost the way it would usually. however, after about half hour, whilst simply accelerating slowly for 60-70ish in 6th it felt again like i had to be a little heavy with the right foot. after coming to a roundabout and giving it the full beans in second and third there was a distinct lack of boost! Not ideal! With the traction control off the wheels didnt spin up in second in the wet and definately would have normally.

I dont know if maybe after a while the car reigns in the power a little to save itself of injury if there is something else not right?

Any ideas?

(Hope you like the short novel I have just wrote!)

 

[rickyjones1209]

I spose best thing would be to get it on VAGCOM and see what fault its picking up.

Any one had this kind of issue before?

 

[JamJay]

I have not had your problem before but my car feels similar at times. It never feels like the turbo isn't kicking in, I can hear the thing sucking as you start to acceleate and you notice a difference between going from non-boost to boost but sometimes it feels as if the car isn't boosting as it should or as hard as it should. It feels like it bogs down and is struggling to produce the power, it also lacks that shove in the back when you hit warp drive. Then on other days, like yesterday all runs fine, it produces great MAF readings and feels like it wants to kill me. I was told at a RR day that my MAF was under reading and I remember that on that day, it felt particularly sluggish, even in the early morning but looking at my logs from last night, it's running as expected, maybe better considering the filter I am using which I am not keen on the design of.

Now I have VAG-COM, I am going to run several tests on different days and check the consistancy of the readings. Air temps outside are supposed to only get colder this week so if anything, my readings should get better. However if they don't then I fear that the MAF is going mad and a new one is needed.

I have scanned the car and there are no fault codes anywhere so I only hope that it is the MAF that's at fault, I don't know where else to look.

I don't know if my situation helps at all but it might push you in the right direction.

 

[PHIL LCR]

My LCR seems to have the same symptoms. When it should be boosting all I get is a funny noise and no power.

I have no boost at all, at first I thought it might be a boost leak (still possible it is) but after searching and reading on here, it appears it could be the MAF.

It's due for a cambelt change and a 40k service within the next couple of weeks so I'll get it looked at by the dealer.

Have any of you guys had a happy outcome with your problem?