15% pulley

mini cooper s GP

New member
hi guys just wondering, im going to sell my mini cooper s and i wanted to know if theres anyone who wants a 15% pulley.

All i want is a swap for the original pulley and you must be able to do the fitting and you can have the 15% pulley.
 

Willy

Member
Original pulley is press fitted. I do not think you will be able to press it back onto the shaft while in the car.

Might be wrong.
 

mini cooper s GP

New member
Yeah I would but the emissions light comes on and off I changed lambdas and so much and the problem comes back the car feels like its over fueling so I thought mayb the pulley can be affecting it
 

MikeBMW

New member
It shouldn't be doing that unless it's not a 15%.

I see you have larger injectors. That would more likely be the culprit, but you would get that tuned to run them smoothly. Otherwise your car got a shoddy tune?
 

Willy

Member
With a unichip and 440cc injectors, your problem is most likely a crap tune.

Removing the pulley would not help at all.

Try swapping getting a retune, if that doesn't solve it, get stock injectors and a retune, if that doesn't solve it remove the unichip. with a 15% pulley you don't need 440 cc injectors or a unichip in any case.

O and Hey Mike, haven't seen you in ages.
 

mini cooper s GP

New member
hi i actually sold the unichip and removed the 440cc injectors.

Right now the car has only a 15% pulley and a decat exhaust.
you can here the supercharger whine but the car is holding back.
Feels like a fueling issue and this has been going on for a very long time.

I just purchased another lambda sensor today , change the fuel pump & filter.

I hope this issue gets sorted so i can sell this car.

thanks for the input fellow members

:thumbs:
 

Willy

Member
Pulley and decat shouldn't cause any fuelling problems.

Air filter unlikely, maybe MAP sensor?

Might also be the complex vacuum/breather system for the fuel system.

Maybe you should have kept all the parts on the car if it was running fine and sold it as it was.

OO might be fuel pressure regulator also. Maybe have the car scaned to see if there is any codes?
 

MikeBMW

New member
The fuel pressure regulator breather pipe that connects to the inlet manifold is known to crack and perish. Cheap part and easy to replace. Might be worth checking out.

Thanks Willy.
 

mini cooper s GP

New member
it wasnt driving right with all the ingredients, thats why i start changing stuff.

By friday i will be able to change the O2 sensor.
At this rate if im in second cruising and a golf 1 comes along , i"ll get smoked!!! :cry:

The emissions light tends to come on and go off randomly.

Initially when i did the pulley change , the car was a bullet.

i'll go through the stuff that was mentioned above , hopefully i can find the problem.

The problem is when i changed the fuel pump the car runs well for the day until it adjusts then becomes sluggish again, same as with the fuel filter and other stuff.

The computer diagnosed O2 sensor so lets see what the outcome is.

thanks again
 
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