boost lag and fuel economy question

[hunker7]

I fitted DV correctly and still seems to be too lazy, I will check if it holds vacuum tomorrow possibly. Also will try disconnecting N75.

[macspring]

Have you replaced the lambda sensor that's also another thing I have changed in the past.

Agreed, beat me to it.

As I'd mentioned in another thread, it made very positive improvement on mine. Extra mpg, and earlier torque.

Try a new one, they are not 'that' dear in the overall scheme of maintaining these cars.

[newsh]

I can't see it there, nothing ever remotely similar to a line. I've turned the engine over several times :/

Should look like this

[hunker7]

Marks on cam sprocket and crank was lined up perfectly.

[hunker7]

I can't see it there, nothing ever remotely similar to a line. I've turned the engine over several times :/

[UrS4boy]

Consolidated Cam and Crank Pulley and Flywheel Timing Mark photos and diagrams

Did you check timing via the Zero mark in the Bell Housing?

And the cam timing mark at its TDC?

Consolidated Cam and Crank Pulley and Flywheel Timing Mark photos and diagrams:

http://forums.quattroworld.com/s4s6/msgs/136943.phtml

[newsh]

I can't find it.

You can't find the zero mark in the bell housing window??

If not then you haven't checked the timing. The marks on the front pulley and cambelt cover are not reliable.

[hunker7]

??

I can't find it.

[newsh]

Did you check timing via the Zero mark in the Bell Housing?

??

[hunker7]

I'll do the DV first and then I'll check what happens, if no change I'll unplug N75 and see if that helps.

Just checked N75 plumbing and that is correct that's what happens when you're pressed for time, dont like jobs like that

[UrS4boy]

N75 Wastegate Frequency Valve (WGFV) location, function and PN info

We might have found a problem; one opposite small hose is connected to turbo outlet hose and one perpendicular to small one is in MAF hose?

N75 WGFV info (yet again):

http://forums.quattroworld.com/s4s6/msgs/20987.phtml

[newsh]

Turn it round it may be getting blown open

[hunker7]

We might have found a problem; one opposite small hose is connected to turbo outlet hose and one perpendicular to small one is in MAF hose?

[newsh]

Did you check timing via the Zero mark in the Bell Housing?

[newsh]

On the DV. The pipe opposite the small vac hose should go to the MAF hose.

Pull the small vac hose off the manifold and suck on it, make sure you have vacuum.


Check that the car is running on all 5 by pulling one injector at a time.