This is proberbally the 3rd thread iv started on my on-going boost leak. Ill try simplify it beast i can..
Stage 2 map with n75j, boosted and held 1.3/1.4 bar fine.
After a period of time boost would peak at 1.4 and tail off very quick to 0.6 and hold.
So i put on a new n75j, but problem was still the same.
Then recently boost will reach no more than 0.6 and hold fine.
Carried out a boost leak test yesterday, and you can hear the lost boost going back through into the tip.
Removed the dv and blocked the hose off to eliminate dv, and you can still hear boost being let back into turbo inlet.
Removed n75 and plumed the boost tester directly to this solenoid, and you can physically feel, and see on the gauge that this solenoid will only hold 0.6 bar, any more the solenoid just releases it.
I tried this with the solenoid plugged in, and unplugged, and is exactly the same.
I then plumed my boost pipes back in but left the n75 connected to the testing equipment so i could start the car up as was unsure if the polarities of the solenoid would change if the engine was running, started the engine and the the results were exactly the same!
Now im wondering if its down to the map of have i just got 2 dodgey n75's? Surely if its down to the map though the solenoid would hold pressure if its unplugged?
anyone got any advice please as its doing my head in!
Stage 2 map with n75j, boosted and held 1.3/1.4 bar fine.
After a period of time boost would peak at 1.4 and tail off very quick to 0.6 and hold.
So i put on a new n75j, but problem was still the same.
Then recently boost will reach no more than 0.6 and hold fine.
Carried out a boost leak test yesterday, and you can hear the lost boost going back through into the tip.
Removed the dv and blocked the hose off to eliminate dv, and you can still hear boost being let back into turbo inlet.
Removed n75 and plumed the boost tester directly to this solenoid, and you can physically feel, and see on the gauge that this solenoid will only hold 0.6 bar, any more the solenoid just releases it.
I tried this with the solenoid plugged in, and unplugged, and is exactly the same.
I then plumed my boost pipes back in but left the n75 connected to the testing equipment so i could start the car up as was unsure if the polarities of the solenoid would change if the engine was running, started the engine and the the results were exactly the same!
Now im wondering if its down to the map of have i just got 2 dodgey n75's? Surely if its down to the map though the solenoid would hold pressure if its unplugged?
anyone got any advice please as its doing my head in!
