hey folks, ive recently been having probs with my v2 555 (yes its definitely one of them as i know they can be confusing haha)

i had it hooked up to a laptop by a friend of mine today and what we've found is that it's cutting the fuel around the 5 to 6k rev mark..sometimes it doesn't do this though and just overboosts.. will this just be down to not having a remap for uk fuel or could it also be something else? was hoping someone could me give some advice

cheers!

 

do you know how much boost its running mate?

 

Have you changed anything lately, like the small vacuum hoses or small boost hoses with the restrictor pill in it..

 

no mate i've got no gauges but am gonna try turning the boost down if possible to see if this cures it.

 

nope but ive had the headgasket changed about 150 miles ago. it happened before this anyway.

 

so have you got a manual boost controller then have you?

 

i wish! my mate is gonna try do it.. haven't asked him how though!

 

if he's thinking about trying to adjust on the actuator then i wouldnt,id see if you get a gauge from somewhere and see what boost is doing mate,ive got an old gauge you could buy if you wanted,its the smoked type that lights up when ignition is turned on £25 delivered if you want it mate.

 

its the boost solenoid prob got oil in it and warped the rubber diaphragm inside . . . . .
then it doesnt know what to boost to , either get a replacement or a aftermarket digital one..

 

does the rev counter drop off to nothing when it cuts?

 

i dont think so.. i think it jus drops a couple of k

 

Try the plugs and coils - Had similar prob with my94 wrx. if the coils are worn out then you get a feeling like a fuel cut and or overboost feeling. V2 has the 4 coils yes?. Look under the rubber ends of each on for cracks. if they are cracked - glue em up and order some new ones.

 

hmmm i will check bud cheers for that. yes it has 2 coils each side of the engine. in 1st gear it does it about 6k and works it way down to 5th when it cuts about 4k if i really floor it but if i feather the accelerator then it will pick up more speed and not cut out and jolt me back or so to speak. that sound similar to what you had bud?

 

Telepathic connection to his car??

 

 

Souynds exactly like what happened to mine! - If it is the coils you could try a search for X-spec ones they seem to be the most reasonably priced and have had no probs with them since fitting

 

Hi All,

It was the Boost solenoid pipes,

the vent to manifold was connected to the actuator and vice versa.

glad its all sorted now Steve,

Look forward to Mapping the car.

 

That'll do it then bud! Nice that its sorted I'll bet! and even better - No costly parts to fork out for!!! BONUS!!