help on this would be great please,yesterday coming down the bypass about 70mph my v reg uk turbo 2000 started hesitating on excelerating now keeps doing it on full throttle what could this be?? there is not a smooth power curve its done 70 k, maf??

 

it could be your plugs check and clean these.they may need regapping.also you may have a vac leak.

 

It could be anything from overboosting due to the cold weather (does your car have any mods?) or as simple as dirt in the boost solenoid.
More info on the car please (fuel you use, mods etc)

Tony

 

does it not sound like the MAF then? what are good plugs to use in it? can they suddenly go then? thanks

 

with a hessitating prob there are loads of posibilities sometimes 1 or a couple relating to the same prob.normaly you start with most common,plugs,coils or leads,clean maf/engine idle check for vac leaks etc etc the list can go on check all these as there easy if you still get probs take it to a garage for diagnostics cos you could be looking for ever and it could be something more nasty like fueling probs which could lead to disaster i know cos i had 2 rebuilds on my previous impreza (if only i took it to a garage)

 

Give the boost solenoid a good flush through.

If i remeber right you can use the same stuff you would use for cleaning brake pipes out.

Mine did this on a 93 wrx i used to have and i replaced my plugs and flushed the boost solenoid and it went away.

Coil packs is another possibility. Check these to see if they are breaking down.

Gav.

 

its totally standed car with full history,i only noticed it yesterday,i run it on optimax all the time never normal unleaded,what plugs should i use?i plan to modify soon,anything else i should check im new to subarus so not familer to the engine,

 

there are lots of plugs you can use but id recomend a heat range 7 as your car is standared im currently opting for HKS heat range 7 at about £60 but everything else on mine is HKS keeping the theme

 

ok no probs where can i get them or what other plugs is there?