fuel pump adjustment

[-MaTTi-]

I thought there is no change to adjust electronic controlled fuel pump manually, but there is!!! Here is some instructions (belongs to an aftermarket intercooler installation):

I found some close up picture of the adjustment screw:

Ou yeah! I couldn´t resist the temptation and tried right now this trick. And yes, there is same affect than if you turn fuel screw tighter in manually controlled pump. I turned 1/2 turn clockwise and now it feels much more effective than like it feel after tuning-box installation. Now I can see a little "powersmoke" during full throttle acceleration when closing 4000 rpm.

 

[-MaTTi-]

Turning the screw didn´t affect to fuel consumption at all. The last tank was exactly same than before: 10.6 l/100 km (mix-drive, mainly mainroad, AC on)

 

[tundra]

Hello MaTTi
Thanks a lot for this information – Just an Question: it’s proposed for the 1-KZ-TE or the 1KD-FTV?
Or is the Fuel injection pump in both Case the same?

Thanks!

Greetings from the Swiss Alp's

Tundra

 

[-MaTTi-]

Hello MaTTi
Thanks a lot for this information – Just an Question: it’s proposed for the 1-KZ-TE or the 1KD-FTV?
Or is the Fuel injection pump in both Case the same?

Thanks!

Greetings from the Swiss Alp's

Tundra

It´s for 1KZ-TE. The 1KD-FTV´s fuelpump is completely different, it´s with Common Rail-type injection.

Thanks. Wish I´d get to visit there sometime.

 

[-MaTTi-]

Consumption is now lower than before, 10.3 l/100 km. I measured exhaust gas: k-absortion was 1.71, before about 1.20 (limit is max. 3.0). So it´s not even close.

 

[brownbear]

so do you have a pyrometer to ensure you just didn't over fuel it? Otherwise the Exhaust gas temps may get high and cause engine damage...

 

[-MaTTi-]

so do you have a pyrometer to ensure you just didn't over fuel it? Otherwise the Exhaust gas temps may get high and cause engine damage...

No pyrometer, it´s an opacity value meter (in my work station). It measure exhaus gas opacity when kick down to full rpm (car is standing).

I´ve heard enough about gas temps... there is no black smoke, so it can´t be a problem.

 

[tundra]

Wish I´d get to visit there sometime.

Yes, if the coincidence wants, you are warmly welcome

Tundra