ZD30 Injector pump replacement and NATS

[Fity]

I am about to replace the Injector pump on my 2001 ZD30 and I was wondering if I will need to have the NATS reprogrammed to match the new injector pump? Isn't that where it immobilises the engine or is it just the ECU? I don't want to pull it all apart and back together again in the driveway and have it not have it start and then have to tow it to Nissan. Can anyone shed some light. The manual outlines how to remove and replace, but nothing on the injector pump / NATS. Thanks :)

Also are all ZD30DDI pumps the same.

[threedogs]

mudski will be able to sort you out

[mudski]

As far as I'm aware you wont have issues with NATs when you replace the IP. its all in the ECU side of things. Just remember when you have it all back together when you prime the IP for the first time, when you start the motor to continue to pump the primer for about 2 minutes whilst the engine is at idle. Otherwise you can cook the PCB in the IP.
Good luck.

[Fity]

Thanks for the hot tip re priming mudski. Should i crack the injector lines while cranking for the first start to help it prime?

Are there any differences in the ZD30DDI pumps?

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[Fity]

I just dropped in another pump and it started up, with no NATS headache. :)

[mudski]

Sorry Fity for not responding. Kinda lost this thread somewhere. No need to crack the lines. The back to you cant reach anyway from memory. Just keep pumping after its started for a couple of minutes.

[Fity]

All good mate. I worked that out also. A series of pump, crank, pump, crank for about 30 seconds and she kicked. A few more rounds of crank and pump and she started. I kept pumping for a few minutes and it is all good now. Thanks for the info.

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[jskogsta]

Is there any way of removing NATS alltogether, or bypassing it all? I have a ZD30 Y61, which seems to have some intermittent NATS issues... and I rather remove it all, as I don't want to be left stranded with that when out in the bush. Based in Melbourne, and would be interested in talking to someone that could help with that. Thoughts? /Jorgen

[808grim]

Hiya ... I'm not terribly qualified on forums though I have a question relating to what you've indicated above - would you be in a position to help me. I've an '03 ZD30 DI and my local garage are fitting a new VP44. A diesel firm that declared my VP44 dead stated the below. I no longer have the old pump and ECU that sits on top of pump. Am I in trouble w.r.t coding this new pump onto my car ...

this what local diesel firm stated :

We had a very similar problem at the beginning of the year with a Nissan patrol, fitted an reconditioned pump but the engine wouldn’t start and there were fault code logged in the vehicle ecu was Code

“75 p5 injection pump control module”

that were not there before.

We had never had a problem with these pumps in the past, we removed the reconditioned pump fitted a new ecu to it tested it then fitted it to the engine again but it was still the same, the pump was removed again fully stripped re built and tested with a new ecu and it was still the same, the vehicle ecu was sent away for testing, and auto electrician checked all the vehicle wiring but it was not until we copied all the ID details from the original pump ecu to the new pump ecu that the vehicle started. That particular job was here for just over 2 months before we got to the bottom of it, it was not much fun at all.

I just told your mechanic about that experience because it seemed to be quite similar. If he could check to see if he has a 75 p5 fault code it may be the same issue. There is also an intermediate connection between the fuel pump ECU connector and the engine wiring loom he could check that there is not corrosion in that because that could also cause a problem.

[solder]

...after my recent zd30 adventure, I can shed some light on this issue...

...whether or not the injector pump UID tags are matched to the ECU, basically depends on which ECU is fitted.

..as far as I can determine, the following vehicles do *not* have any code matching issues...

Patrol/Navara/Terrano with TB45E or non-CRD ZD30
R50 Pathfinder with VG33E

These are the older ECCS-D ECUs with OBD2 connector that really isn't OBD2 -- these vehicles still utilize Nissan Consult

Models not in this group (including those fitted with zd30 CRD), utilize the newer ECU design that *does* require pump UID tagging to be programmed in.

..this is the easy way to identify what you're up against...


HTH

[808grim]

Solder...I too HTH's.....thanks ever so much for your reply and insight. What troubled me for some time is that I gather the truck has an ecu and the pump has a fpcm (fuel pump control module) As such a ton of water under the bridge got lost in translation with me.... I work in telecoms not cars tho I get the need to get some terminal emulator/interface to program software/ID's if required ...though I not got a clue on what tools Nissan Consult are nor any other interface/diagnostic tool I might need to get my hands on. I bet the syntax/ID code, if required, is like some 16 digit MAC address like what we have on our internet devices at home

So I bought a pump from Ireland and it looks like it has never been installed ...or if so previously then a fantastic recon. I gather the Irish army use this truck and were selling off old new stock to the dealer I bought my pump from....which cost me £1000 not so Great British pounds. Then there was the new timing chain and gasket set. So my local mechanic is anxiousness spends lots more of my cash putting it all together and we end up with a dud set of circumstances ... Coding and or NATS... I do know about not 'cooking' the chips on the FPCM as it needs lots of diesel to bathe in

So am I looking for TB4SE on some label on my trucks ECU or my new FPCM ? Or am I to look at the connector type ... Being a pseudo OBD2.

To this final senior moment I am having in all of this ..... This generous Bosch diesel specialist (not Nissan specialist) I am working with here... He has since stated ... In regard to a Patrol he referenced above that they dealt with (he doesn't have my car as he is many clicks away) ...

He says ......to reprogram the ECU the pump ECU has to be wiped then run on test for about 3 hours to re-map everything which would be £250 approx. These ECU's only have the capacity to be mapped a few times before they need replaced so you might need an ECU kit which is quite expensive ... Like another £500.....

As you may have concluded my mechanic is keen to proceed but not if the car won't start...and the Bosch guy on the other coast has my original dead pump which he declared dead and told me it would be £1800 to recon it... I at a loss on this item ...

Thanks ever for any further insight you chaps can offer ... Do we bang it all together ...spend another UK grand ...it doesn't start and then find myself £3k down and pushing it into the sea and end up using it to anchor my flat head tub ?

[808grim]

Solder... Hi...I just realised I misread your previous note.... I have the ZD30 DI and I misread your reference to the Nissan TB45E engine. So what I need to look for is whether my car has the older ECCS-D ECU .... And if so then the pump shouldn't be UID coded to my ECU and I should be able to plug and play. if I need to code the ECU can I pick up eBay copy of Nissan Consult software and manually code the ECU over the OBD2 connector ?

All the very best

[808grim]

Hiya... Not sure if you picked up my reply though I just took photo of my ECU in situ and it's a

ZEXEL 407917-061 VC304 with a large D GE above Nissan Motor DC12V

So I guess I still unclear if this is an ECCS-D and or whether my pump UID is coded on the ECU

Any further suggestions would be really helpful

[solder]

Hi -- sorry I can't be of much help with this, and I think it's Consult-2 for vehicles post 1995 (some nissan guru might know). Does the ECU talk to a generic OBD-2 scanner?...

[808grim]

Hiya...many thanks again... The truck is in 100 pieces at present .... no electrical so cannot currently check OBD2 scanner. Somewhat a catch 22 as my mechanic nervous about putting lots of hours into putting it back together when a Bosch pump guy said if it don't work it all gotta come back off the car and go onto a test rig to program.

Anyhow I convinced my mechanic to put it all back together at my cost/risk and hope for the best..so will let you know. Just not 100% sure what you meant by ECCS-D as there no reference to this on my ECU labels.... Or did you mean for me to check the labelling on the pump controller?

[GGG]

Hiya ... I'm not terribly qualified on forums though I have a question relating to what you've indicated above - would you be in a position to help me. I've an '03 ZD30 DI and my local garage are fitting a new VP44. A diesel firm that declared my VP44 dead stated the below. I no longer have the old pump and ECU that sits on top of pump. Am I in trouble w.r.t coding this new pump onto my car ...

this what local diesel firm stated :

We had a very similar problem at the beginning of the year with a Nissan patrol, fitted an reconditioned pump but the engine wouldn’t start and there were fault code logged in the vehicle ecu was Code

“75 p5 injection pump control module”

that were not there before.

We had never had a problem with these pumps in the past, we removed the reconditioned pump fitted a new ecu to it tested it then fitted it to the engine again but it was still the same, the pump was removed again fully stripped re built and tested with a new ecu and it was still the same, the vehicle ecu was sent away for testing, and auto electrician checked all the vehicle wiring but it was not until we copied all the ID details from the original pump ecu to the new pump ecu that the vehicle started. That particular job was here for just over 2 months before we got to the bottom of it, it was not much fun at all.

I just told your mechanic about that experience because it seemed to be quite similar. If he could check to see if he has a 75 p5 fault code it may be the same issue. There is also an intermediate connection between the fuel pump ECU connector and the engine wiring loom he could check that there is not corrosion in that because that could also cause a problem.

I have this same problem with a Nissan Frontier after replacing the PSG5 from another pump how did I fix this since you had the same problem I am having now?

[GUFLEX]

As far as I'm aware you wont have issues with NATs when you replace the IP. its all in the ECU side of things. Just remember when you have it all back together when you prime the IP for the first time, when you start the motor to continue to pump the primer for about 2 minutes whilst the engine is at idle. Otherwise you can cook the PCB in the IP.
Good luck.

Hey Mudski,

Bit of a thread dig, but just wanted to get a bit more info if possible.
When you say "it is all in the ECU side of things" do you mean that you need to hook up a scan tool to update ECU so it recognises the new Injector pump? Or will it do this automatically on its own?

Cheers!

[mudski]

Hey Mudski,

Bit of a thread dig, but just wanted to get a bit more info if possible.
When you say "it is all in the ECU side of things" do you mean that you need to hook up a scan tool to update ECU so it recognises the new Injector pump? Or will it do this automatically on its own?

Cheers!

Just plug and pray brother! The ecu will know what to do. Reset it first though by removing the earth from the battery for half hour or so.


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[GUFLEX]

Awesome good to hear! thanks for clarifying that.