kaneelschep
Well-known member
Hi all.
Been having a problem with an overboost situation on my AJM tdi 85kw engine in an audi b5.
When I give it a bit more gas or reach around 3000rpm, It goes into limp mode.
When restart, no problem again.
So I have read a lot about it and thought I narrowed it down to a faulty n75.
Got a new one. Didnt fix the problem.
Meantime I replaced a lot of vacuum lines. Didnt help. Cleaned egr valve and pipes. didnt help.
Now I came across this list of posibilities here and saw one that might fit.
While working on the car, I leaned on the firewall, where the battery is,
on the big hose coming from the brake booster.
Which goes through some big rubber through the firewall. And it did sssssssshh.
I noticed if I push/pull/move the hoses on either side or the rubber itself, it releases the vacuum.
Now I also had the brake pedal issue once.
The braked felt like the car was turned off. The vacuum issues started around that same time.
So could it be this rubber? Or hose?
Thanks
Been having a problem with an overboost situation on my AJM tdi 85kw engine in an audi b5.
When I give it a bit more gas or reach around 3000rpm, It goes into limp mode.
When restart, no problem again.
So I have read a lot about it and thought I narrowed it down to a faulty n75.
Got a new one. Didnt fix the problem.
Meantime I replaced a lot of vacuum lines. Didnt help. Cleaned egr valve and pipes. didnt help.
Now I came across this list of posibilities here and saw one that might fit.
While working on the car, I leaned on the firewall, where the battery is,
on the big hose coming from the brake booster.
Which goes through some big rubber through the firewall. And it did sssssssshh.
I noticed if I push/pull/move the hoses on either side or the rubber itself, it releases the vacuum.
Now I also had the brake pedal issue once.
The braked felt like the car was turned off. The vacuum issues started around that same time.
So could it be this rubber? Or hose?
Thanks