fuel pump adjustment

-MaTTi- · 08-05-07, 05:45 AM

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- · 08-05-07, 06:19 AM

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 · 08-14-07, 02:32 PM

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- · 08-16-07, 08:53 AM

Quote:

Originally Posted by 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

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- · 08-23-07, 04:21 PM

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 · 08-30-07, 06:02 PM

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- · 08-31-07, 12:36 PM

Quote:

Originally Posted by 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...

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 · 03-10-08, 03:50 PM

Quote:

Originally Posted by -MaTTi-

Wish I´d get to visit there sometime.

Yes, if the coincidence wants, you are warmly welcome

Tundra

08-05-07, 05:45 AM	#1
-MaTTi- IH8MUD Rookie Join Date: Jan 2007 Location: Finland Posts: 73	fuel pump adjustment 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. __________________ Land Cruiser KZJ90 -96 -2" bodylift + 1.25" spacers at front -33x12.50R17LT tires -Water Intercooler -3" exhaust pipe (incl. down pipe) Last edited by -MaTTi-; 08-12-07 at 01:25 PM.

08-05-07, 06:19 AM	#2
-MaTTi- IH8MUD Rookie Join Date: Jan 2007 Location: Finland Posts: 73	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) __________________ Land Cruiser KZJ90 -96 -2" bodylift + 1.25" spacers at front -33x12.50R17LT tires -Water Intercooler -3" exhaust pipe (incl. down pipe) Last edited by -MaTTi-; 08-12-07 at 01:28 PM.

08-14-07, 02:32 PM	#3
tundra IH8MUD Rookie Join Date: Oct 2006 Location: Switzerland Posts: 19	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 __________________ Bitumen? Just another waste of taxpayer's Money!

08-23-07, 04:21 PM	#5
-MaTTi- IH8MUD Rookie Join Date: Jan 2007 Location: Finland Posts: 73	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. __________________ Land Cruiser KZJ90 -96 -2" bodylift + 1.25" spacers at front -33x12.50R17LT tires -Water Intercooler -3" exhaust pipe (incl. down pipe)

08-30-07, 06:02 PM	#6
brownbear Mod in Hibernation Join Date: Sep 2004 Location: Where diesels purr and turbos whine TLCA# 15584 Posts: 6,200	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... __________________ -84 BJ60, Finally on the FN road! -91 FJ80, wife's ride Iron Butt award winner of the Cruise Moab 08 !

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