i drove my rs combi van up to the pod this weekend, bout 140 miles, drove perfect all the way up, as soon as i pulled in and bought my ticket, i pulled away and the combi wouldnt go anywhere! its boosting and holding 15psi, not splutering, turbos spinning up nice, basicly its making all the right noises just wont go, it drove the 140miles home fine to! apart from not being able to usethe turbo! HELP ANY1! mayb a sticky actuator?

 

Have you got a dump valve on there if you have check that aint fucked or that you aint got an air leak somewhere

 

check actuator bolt/thread sounds like your wastegate is jammed open although if its making the boost maybe a boost pipe has come loose?

 

 

I'm guessing the turbo is spinning up but its not using the boost. Actuator I would have though sticking.

 

Quote:
Originally Posted by rscombi.
s2 not boosting but making all the right noises?

Quote:
Originally Posted by rscombi.
its boosting and holding 15psi

didint make myself clear , its not goin when it should. hence, "not boostin" bu the boost gauge tels me im boostin an holdin at 15psi as usual,

 

dump valve is fine, no hoses off, that was the 1st thing i checked, fuel regulator?

 

my mates evo had the same symptoms and was sticky actuator. boost would come in but the car would rev and not go anywhere.

 

cheers people gonna have a butchers this wknd but keep the advice coming just in case its not the actuator,

 

cracked exhaust housing?

 

If the turbo is producing and holding 15 psi of boost it has to be something to do with the engine management.

TPS would be my first port of call seeing as they are prone to dry joints internally, and this being the sole component that triggers your full load fuel enrichment.........

 

if it has a knock sensor it could be the ecu at fault, will boost like normal but the ecu could be taking the timing away, will make all the noise but feel flat.

 

yea thats what its doin mate, also not startin now, fuel regulator ecu?

 

you need to identify whats missing from the equation before you can begin fault finding.

Fuel? Spark?

 

turning over now, it wants to but just wont. stinks of fuel also

 

my fuel ecu fuse had blown, was an arse to start when cold and when boost came in it dint do anything, maybe worth a look

 

how bright is the spark also

 

just a thought have you checked the timing,just too see if the belts jumped a tooth.rare i know but worth a check.

 

cant be actuator then or duff turbo wastegate i wouldnt have thought because these wouldnt correlate to a starting issue unless this is of course another issue its picked up

 

got it goin!it was 5th injector, stil not boostin tho so checked the fuel pump relay, its melted! any1 got 1?

 

if the fuel pump relay wasnt working the car wouldnt run so dont think for a minute thats going to solve your boosting issue.

I will almost guarantee you need a new fuel pump aswell, that'll be whats made the relay melt.

 

well that cant be helpin the situation surely!! gona change that1st, process of elimination right?

 

got a relay mate pm your address and ill post tusday dont worry about payment hope it helps

 

if its working its working.....if it wasnt the fuel pump wouldnt run and therefore it wouldnt start.

if i had any doubt as to the relay being a symptom in the problem i would advise changing it, and as ive already said, your current one is getting hot and melting, unless you change the fuel pump aswell the new one you fit will do the same thing..........

 

thanks 4 all your help guys but no1 was right!! got it back 2day and the timing was way out, the distributor had worked its way loose, so all back running sweet as now, cheers!!