Ok, I`m finally getting to the bottom with my starting issues!!

 

The car wouldn't start at all tonight and it stinks of neat fuel from the exhausts

 

I have found that the fuel pump is pumping even with no key in the ignition!! Its making its pumping sound and also there is a hissing sound in the engine bay by the fuel pressure regulator!!

 

Is this normal? why is the fuel pump on all the time?

 

any help is appreciated

 

Thanks Daz

daz have yu tried the fuel control unit behind the near side rear seat behind the side trim ,,swap it with one of your other zeds bud , this also is controlled bu the ecu i had this on mine some years back mate

daz have yu tried the fuel control unit behind the near side rear seat behind the side trim ,,swap it with one of your other zeds bud , this also is controlled bu the ecu i had this on mine some years back mate

 

No, Not tried that mate, I`m not sure where it is on mine (vert), but will check that out, pissing me off at the moment, and 4 days before JAE!!! Ahhhhhhhhhhhhhhhhhh

 

cheerz dude

same thing on mine years back could not stop the fuel pump from running ,, changed that unit and that sorted it mate

same thing on mine years back could not stop the fuel pump from running ,, changed that unit and that sorted it mate

 

 

Good man Jay!!! it must be that!! I`m just looking now through the online manual where the pump CU is on the verts! I really don't want to miss JAE :)

No, Not tried that mate, I`m not sure where it is on mine (vert), but will check that out, pissing me off at the moment, and 4 days before JAE!!! Ahhhhhhhhhhhhhhhhhh

 

cheerz dude

it sits in front of the pass side rear wheel arch.

Not sure how much trim you need to remove.

Come on Daz get it fixed or I will send my mechanic Jeremy:yes:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

it sits in front of the pass side rear wheel arch.

Not sure how much trim you need to remove.

 

Thanks Pete, I will be tearing it all off in the morning to find the offending box :)

Come on Daz get it fixed or I will send my mechanic Jeremy:yes:

 

 

Ha,ha Gaz!!! At the moment the hammer is small time, its needs some petrol and a match!!! BOOM!!

Edited September 3, 201213 yr by daZvert

If the fuel pump ecu is the same between the swb and the lwb I have one in my blue zed I could always drive it up to you lol

ill have to see how mine starts in the morning. i did hear some weird noises from my fuel pump the other day. ill keep ya posted.

 

Was your fuel pump making the noise when no key in the ignition mikey?

I will bring him to JAE with me as he has a soft spot for 300zx's

 

 

 

 

If the fuel pump ecu is the same between the swb and the lwb I have one in my blue zed I could always drive it up to you lol

 

 

Ha,ha Vods!!! any excuse to drive your new beast, lol, Not sure if they are the same, but will try the one from my POOR TT!!! The poor car has been a transplant guinea pig over the last few days, that thing will never go again the way things are going!! but much appreciated mate, will let you know tomorrow, but I can collect, I wouldn't expect you to come all this way, I still have my van :)

Edited September 3, 201213 yr by daZvert

I will bring him to JAE with me as he has a soft spot for 300zx's

 

 

 

 

 

Hey Jeremy, what big hands you've got!! and one ear is larger than the other ,lol

Ha,ha Vods!!! any excuse to drive your new beast, lol, Not sure if they are the same, but will try the one from my POOR TT!!! The poor car has been a transplant guinea pig over the last few days, that thing will never go again the way thing are going!! but much appreciated mate, will let you know tomorrow, but I can collect, I wouldn't expect you to come all this way, I still have my van :)

 

Let me know, And yeah it's nice to drive one with out constantly checking the damn temp gauge

I have a feeling that NA and TT fuel pump ecus are different. There are bound to be some in my parts collection.

Give me a call tomorro if you need any help. 07778 411568.

Hey Jeremy, what big hands you've got!! and one ear is larger than the other ,lol

 

A Joiners hands are well used lol and I use that ear for my pencil:laugh:

I have a feeling that NA and TT fuel pump ecus are different. There are bound to be some in my parts collection.

Give me a call tomorro if you need any help. 07778 411568.

 

Thanks Pete, get digging in your parts collection :D will call you 2morra :)

A Joiners hands are well used lol and I use that ear for my pencil:laugh:

 

 

LOL, I must be the only joiner around that cant keep his pencil behind his ear!!! It just keep`s falling out :(

Between 9-10 will be good.

Or in the afternoon.

I have a VOSA VIC appointment on my repaired Z32 late morning.

 

One of the joys of using the Emerald management is that you can do away with loads of troublesome sh*t that Nisssan fitted... like fuel pumpECUs

Edited September 3, 201213 yr by Slick Pete.

Between 9-10 will be good.

Or in the afternoon.

I have a VOSA VIC appointment on my repaired Z32 late morning.

 

One of the joys of using the Emerald management is that you can do away with loads of troublesome sh*t that Nisssan fitted... like fuel pumpECUs

 

Ok Pete, I`m sure you will be hearing from me :) I will make JAE, but its going to be a close call!!

Hi,

 

the pump normally goes for 5 secs on ignition to build pressure in the system to make sure injectors deliver proper amount of fuel.

 

Having the pump on all the time, though not a good thing, shouldn't make starting any harder other than a drain on the battery so it might crank slower.

Hi,

 

the pump normally goes for 5 secs on ignition to build pressure in the system to make sure injectors deliver proper amount of fuel.

 

Having the pump on all the time, though not a good thing, shouldn't make starting any harder other than a drain on the battery so it might crank slower.

 

Ok, Thanks again Jaffa :)

 

Just hope I get to the bottom of it soon :(

Daz, check the PTU and CAS connections are clean. When the battery is fully charged crank the engine for 10 secs with the fuel pump fuse removed. Then replace the fuse and try starting. Let us know the outcome.

Daz, check the PTU and CAS connections are clean. When the battery is fully charged crank the engine for 10 secs with the fuel pump fuse removed. Then replace the fuse and try starting. Let us know the outcome.

 

 

Done all that just now and she started :) all the terminals were nice and clean :), But I do think it was because the power was off all night, so no pump was pumping and a nice fully charged battery :), I have found the fuel pump ECU and gonna have a look inside it, there is a way to bypass the unit for temporary measure, so at least it can get me to Zedworld Friday is they still have space

 

I`ve found a handy little write up on the fuel pump ECU here; http://z32.wikispaces.com/Fuel+Pump+Control+Unit

 

Mikey maybe check your`s mate, I`m still unsure if the TT and n/a pumps are the same??? I have conflicting information :)

Sounds like you may have a dry joint on the fuel pump ecu circuit board to me.