[Mk2] [Turbo] boost leak?

[sketchmyster]

got a mk2 rev2 mr2 that keeps juddering at approx 2500rpm can hear air being sucked into the turbo but no boost the car also has a rough idle sometimes stalling if i put my foot down will backfire at 3000rpm any help

[platmatt8]

Have you changed anything recently?


Is your boost gauge showing normal boost pressure? if so doubt it`s a boost leak causing the problem.

Possible AFM fault?

Ignition timing?

[sketchmyster]

thank you its driving me mad at the moment as carnt figure it out

[sketchmyster]

not had the car long was running great then this happend nothing was changed

[Nic]

If it's suddenly just stopped making positive boost pressure I'd start by checking if there are any IC or vacuum hoses that are loose or popped off.

[sketchmyster]

found a split in a pipe today so just waiting for a replacement fingers crossed its the only 1 as couldnt see anymore

[sketchmyster]

right replaced the pipe and low and behold it hasnt worked

[twistedkrank]

It could be the knock censer, That would make it judder at 2500rpm. But you would see the engine warning light come on.

[sketchmyster]

have found the green sensor by turbo belive its called e.c.u temp sensor that has destroyed its self new one orderd and arrives thursday