Help adjusting fuel pump td42

[MudRunnerTD]

Nah mate your TD42 will very happily boost to 15 all day mate. The standard Actuator is set at around 10psi and MTQ preset theirs at 11 but fitting a variable Boost controller will allow you to wind up the boost to something more reasonable at about 14 to16psi and have a very happy car all day.

As you explain and as noted in my previous post your temps get better with a gear change and that because your getting out of the Bog Zone which is low boost below 2200rpm. At those revs you turbo is not quite spooling enough and looking for max fuel to boost but not getting enough so tries harder and gets hot. Increase the revs or back off the throttle slightly and up the boost and you will be blown away.

Not enough Boost is clearly the problem as your temps are consistently too much fuel. Match the fuel to the boost and it will improve dramatically

[MudRunnerTD]

Above is simplistic and not technically correct theory but the result is what you need mate

[threedogs]

Think opposite to petrol, more fuel on Diesel is more black smoke and higher EGTs
over fueling.

[BLKWDW]

Nah mate your TD42 will very happily boost to 15 all day mate. The standard Actuator is set at around 10psi and MTQ preset theirs at 11 but fitting a variable Boost controller will allow you to wind up the boost to something more reasonable at about 14 to16psi and have a very happy car all day.

As you explain and as noted in my previous post your temps get better with a gear change and that because your getting out of the Bog Zone which is low boost below 2200rpm. At those revs you turbo is not quite spooling enough and looking for max fuel to boost but not getting enough so tries harder and gets hot. Increase the revs or back off the throttle slightly and up the boost and you will be blown away.

Not enough Boost is clearly the problem as your temps are consistently too much fuel. Match the fuel to the boost and it will improve dramatically

even without an intercooler

[BLKWDW]

Think opposite to petrol, more fuel on Diesel is more black smoke and higher EGTs
over fueling.

According to my brother who was following behind there was little to no black smoke coming from the exhaust.

[MudRunnerTD]

even without an intercooler

Yes for sure mate. At the end of the day you have a gauge so your in control. Fit a boost controller and have a play.

[BLKWDW]

Yes for sure mate. At the end of the day you have a gauge so your in control. Fit a boost controller and have a play.

Kool will have to wait till after the trip this next weekend unfortunately as dont have the time of money before then.

Will it also fix my fuel consumption problem

[BigRAWesty]

Thanks for this info guys. I was going to tweak mine a little as its non trubo. But ill wait for egt to be installed so I can monitor any changes. Also looking at a new exhaust to open it up a little.. I reckon 22 years of diesel soot would not be helping things...

Kallen Westbrook
Owner of
Westy's Accessories

[bt1520]

is this a td42 engine or a sd 33 i am unaware of inline pumps being fitted to td 42 engines, here in australia anyway.

[nissannewby]

They are rare in aus but do exist