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2.8l turbo injector pump tune

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2.8l turbo injector pump tune

hi all
having turboed my 2.8 a few months ago i adjusted the injector pump myself about 1/5 0f a turn but ime pretty sure that ive got it wrong weather the pump was over/under fuelling before or i just messed up.ime really thinking that ime not getting enough power out of it.
i called berima diesel service to see if they would be able to sort it out for me and the bloke said that he would not just set the pump for me he would only do a full injector service and that would set me back $1100 to $1300 OUCH!
so my question is does enyone know where in sydney or close by i can get someone to set my injector pump correctly and not burn a massive hole in my pocket doing it. cheers matt

Unread postby turbocab » August 15th, 2010, 9:46 am


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Your best chance is to take it to a diesel tuner who has a Dyno.
The diesel specialists can only set the diesel pump on the workbench to fill measured tubes at certain RPM. This needs the pump removed from the car.

But if your pump was OK before you fiddled with it then a diesel tuner will adjust the fuel governing screw and get the feedback from the dyno to get it right.

You should couple the dyno tune with a Exhaust Gas Temperature meter (EGT) to make sure you are not heating the motor up too much by putting in too much fuel while driving.

On Hilux, turning the fuel governing screw anticlockwise will reduce fuel and clockwise will increase fuel. Do it in 1/8 increments and check for smoke while driving or under load or at increased revs.

Mark the fuel screw before you turn it !!!!

Can't help you with a diesel dyno tuner in Sydney but a diesel pump specialist is Sydney Diesel Centre in Smithfield (on Cumberland Highway)

Unread postby SimHilux » August 16th, 2010, 11:37 pm


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Havn't tried west end diesel in wetherill park before. Might take my injector pump there to be re-built as it only just started leaking. Looks as though they have some high end facilities there and i think with that they may charge a pretty penny.

Zexel, Delphi and Denso accredited specialist mechanic, Australia
1994 Turbo Diesel Lux, 2inch BL, 33 bighorns, Bullbar. More coming soon. Build up at:

http://www.4wdaction.com.au/forum/showthread.php?t=87197

Unread postby Jasonr23 » August 16th, 2010, 11:57 pm


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Jasonr23 wrote:Havn't tried west end diesel in wetherill park before. Might take my injector pump there to be re-built as it only just started leaking. Looks as though they have some high end facilities there and i think with that they may charge a pretty penny.

Zexel, Delphi and Denso accredited specialist mechanic, Australia



Around the corner (well not far ) is Sydney Diesel Centre in Smithfield border of Wetherill Park. They are an accredited diesel specialist. Did my injector pump and timed it properley ie. full reco

get quotes from both mobs and Speak to the owner Gary. he is willing to help out.

Unread postby SimHilux » August 17th, 2010, 11:38 pm


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bluehilux wrote:SimHilux, what was the full reco of your pump/injectors/new tips cost ?


Mind you the rate was a mate rate as I have gotten to know him personally. Essentially he did it at cost about $1000 for full rebuild of injector pump which normally costs about $1500 - $1600 for a hilux. I did call a few other diesel mechs just to check and they all quoted around the $1500. I did remove and install the pump myself. Injectors csst about $80 each exchange hence no waiting.

Stripping of the inj pump on the workbench is time consuming and measuring tolerances and flow rates and parts etc and is labour intensive hence the high cost (he has to pay his workers).

As a sobering thought the Hilux mechanical pumps are cheapest, pity the newer Nissan & toyota electronic pump owners.... the rebuilds cost about $4000 - $7000 depending whats wrong with them. Semitrailer pumps can cost the price of a new car...

Sent him a note last night to say that there maybe a fellow 4WD action forum user or two coming his way and to treat them fairly and go cheaper than his competition otherwise I'll kick him in the nuts...

He generally will do little extras such as checking you injectors on a flow / spray pattern machine to see if they are within tolerances for you (you remove them). If you fit the pump yourself you can take the ute back and they will adjust it with the special dial indicator bolted on the back of pump to measure correct plunger depth.

Tell him if you have turbo as well as he can set the pump to slightly overfuel to accomodate the turbo.

Unread postby SimHilux » August 18th, 2010, 10:35 pm


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hav a look around for change over reco pumps. my mate **** a pump n got a change over pump for 700 full reco'd with warrenty. i got my injectors full reco when i full rebuilt my 2.8 n tht only cost 350 for all new internals. i jus got my turbo set up n turned my fuel screw clockwise quarter turn like all the forums and diesel guys dwn here said and it runs perfect.

Unread postby lux4mud » August 18th, 2010, 10:46 pm


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yeah thanks guys,i dont need a new pump or a full rebuild on my pump(as far as i know)just need it to be adjusted to the correct setting so by the sounds of it berrima diesel isnt priced too badly.perhaps ile call again and see what they can sort out for me.cheers for the help matt.

Unread postby turbocab » August 21st, 2010, 10:34 am



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