well guys i had a big problem today i drove the car on the motorway took an exit an when i putted the gear down my engine stalls goes out OFF i try to start it start hard an don t stay on idle i looked at my AFR and it was on 18 ? ? i drove the car at 18 on AFR but only 2 minutes at than i cut the engine off i looked for some big air leak at the engine bay i didnt found

put the black box off turn the pressure again more up try to start the car it start but the idle goes UP and DOWN again UP and DOWN i played with the CO srew also nothing at idle 18 on AFR
and my brake pedal feel hard harder then before

also on idle when i pump with the brake pedal the idle goes up

strange ? a air leak at the brake servo ?

strange that suddently this happen ?

but also my blake box on the meetering unit was a little wet of fuel on it but the 2 O rings gasket looks ok ....

don t understand

 

try your inlet my mate had this problem inlet seal.

 

because if i turn the nuts of the master cylinder to the servo full clockwiss i hear a big pchhhhh when the engine is running but the idle was stable then i turned the 2 nut a little bit anti clockwiss no pchttttt anymore

but wy does my idle automatic goe up to 1200 rpm then falls again to 700 then again up to 1200 than falls again....

 

airleak maybe inlet?

 

sounds like the diaphragm in the brake servo has failed causing a massive airleak

 

well i gona try to start the engine with a bolt in the enter of the vacum pipe to the servo only to see if there is a air leak or not

 

get an airline to your turbo put air through youl find the airleak quike,

 

ok GUYS it was the auxilair valve under the intel manifold is ok now

 

change the servo i had the same problem