Search found 4 matches

by bencuri
Thu Feb 25, 2021 10:29 pm
Forum: B3 & B4 PASSATS
Topic: Which relay or box controls the boost control valve on the AAZ fuel pump?
Replies: 0
Views: 2498

Which relay or box controls the boost control valve on the AAZ fuel pump?

My AAZ engine has a type of fuel pump, where the idle speed losses are compensated with an electric speed boost valve (there is also a vacum version of it in some cars). Does anyone know which relay or box controls the amount of the boost on the fuse box? I was told it is the number 166 box, but I c...
by bencuri
Thu Feb 25, 2021 10:08 pm
Forum: B3 & B4 PASSATS
Topic: AAZ engine vibrates too much at 900 and 1500 RPM
Replies: 5
Views: 2632

Re: AAZ engine vibrates too much at 900 and 1500 RPM

"clutch to snatch or engage violently" This is a symptom I do experience often. I thought this is due to the clutch being exhausted. However today someone was sitting in my car and also noticed it and identified this as exhausted mounts problem. It seems then it's worth giving a try and bu...
by bencuri
Thu Feb 25, 2021 4:19 pm
Forum: B3 & B4 PASSATS
Topic: AAZ engine vibrates too much at 900 and 1500 RPM
Replies: 5
Views: 2632

Re: AAZ engine vibrates too much at 900 and 1500 RPM

Yes it is manual gearbox, and we replaced the number 24 one to Lemförder brand mount, the best available option here.
by bencuri
Wed Feb 24, 2021 11:51 pm
Forum: B3 & B4 PASSATS
Topic: AAZ engine vibrates too much at 900 and 1500 RPM
Replies: 5
Views: 2632

AAZ engine vibrates too much at 900 and 1500 RPM

I have a problem with my car fitted with AAZ engine that the vibration from the engine is too much and it is shaking the car. The problem exists at 2 different RPM levels: below 1000 RPM, and during acceleration around 1500 RPM (this one only when advancing, if clutch is released this is not present...