New Nissan 4.2 TDI Engine Specs

Submitted: Thursday, Mar 20, 2003 at 12:46
ThreadID: 3957 Views:2304 Replies:6 FollowUps:2
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Has anyone had a real good look at the new nissan 4.2tdi, the fuel pump is suppose to be electronic.All I found was a standard rotary fuel pump, cable operated , no drive by wire accelerator, cable-pull cruise-control no air flow sensors & a lot of emission gear,plus the intercooler.4x4 Aust Mag say its fitted with electronics, I must have overlooked something??
Has made it a bit more drivable, & hangs on a touch better with the extra 30Nm of torque but nothing all that special , bit of a let down really, Nissan must think they can Squeeze a bit more life out of the ol dinosaur still.
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Reply By: Will - Thursday, Mar 20, 2003 at 13:51

Thursday, Mar 20, 2003 at 13:51

The specs are:
Mechanical pump (same as previous one) with electronically controlled injection timing.

The only electronics is just that.
AnswerID: 15678

Reply By: Steve Mc - Thursday, Mar 20, 2003 at 15:01

Thursday, Mar 20, 2003 at 15:01
Thanks Will, ECU must control timing only, thus the smoother running & most likely pollution control. Still a bullet-proof old motor though.
Thanks Steve
AnswerID: 15690

Follow Up By: Will - Thursday, Mar 20, 2003 at 15:28

Thursday, Mar 20, 2003 at 15:28
That is correct Steve, in fact the extra torque is achieved by the electronic timing control.

The intercooler allowed them to gain more power but they brough power back down by restricting fuel loadings (Pollution control).

FollowupID: 9544

Reply By: Truckster - Thursday, Mar 20, 2003 at 16:47

Thursday, Mar 20, 2003 at 16:47
Well my local dealer has sold 1 of the new GU 4.2 TD IC!! He is in shock,
"3.0s are walking out the door faster than he can get em in comparison"!

People were waiting for this magic big update, but it never came, all the secrecy was for nothing!!! Missan kept so quiet about it, like it may have the big 4.8 Diesel everyone was dreaming of, but still the old TD42.. the good thing is that its a motor worth having which is good for 500,000+ if treated well..

And remember if you get one take it to someone who knows turbos and I think you could do wonders with it ...

AnswerID: 15696

Reply By: sean - Thursday, Mar 20, 2003 at 20:56

Thursday, Mar 20, 2003 at 20:56
Does anyone know how the injection is controlled electronically. Does the 4.2 now have a computer and 12 volt power to rely on.

AnswerID: 15724

Follow Up By: Will - Friday, Mar 21, 2003 at 09:25

Friday, Mar 21, 2003 at 09:25

Except for the GU (up to 99) models (series one) they all rely on 12 volts because they have an antitheft device.

The new one is no different, the only addition is electronic timing control and EGR.

It is still way more simple than the 3.0L

It DOES NOT have two ECUs , one way clutch in alternator, vulnerable serpentine belt, timing chain, swirl control, variable vane turbo, air flow sensors, fuel temperature sensors, and the list goes on and on for the 3.0L.... So the answer should be that it has more bushability than others.
3.0L sells more because it is cheaper and goes well and people don't know how complicated it is/would be when things go wrong 5 or 10 years down the track.
I have several friends with them and all had troubles (but they are still under warranty)...
MY 4.2 (yes a dinasour engine) has not seen a warranty claim in 4 years and has done 135000 trouble free kms over a variety of terrains....
And the best thing is... Nobone can tell me you have to take it to the NIssan dealer to reset the %^&$# when I am 1000kms from anywhere in the middle of the CSR...

FollowupID: 9606

Reply By: desert - Friday, Mar 21, 2003 at 14:20

Friday, Mar 21, 2003 at 14:20
I agree with Will's assesment, wholeheartedly. What a bungled update Nissan have botched up again. I also make the observation that the plumbing on the intercooler, looks like the 4th year apprentice mechanic threw together in his back yard! Talk about an ametuer looking set-up, I've seen better conversions done on Morris Minors! And what happened to the horsepower, the things still a slug? Can only hope it is a patch-over job for something bigger and better down the track. Here's hoping.
AnswerID: 15779

Reply By: sean - Saturday, Mar 22, 2003 at 09:53

Saturday, Mar 22, 2003 at 09:53

Excellent info, thanks for the reply. Looks like <2003 GU's are gonna be real keepers.

AnswerID: 15840

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