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View Full Version : ZD30 CRD rail pressures. Need someone with a scanguage or info. urgent


WogsRus
26th February 2013, 10:40 AM
Hi Guys

in light of my issues with my car, could someone with a scan gauge or info let me know the following. Require it as urgently as possible.

1) Cold engine, rail pressure at idle, 750 rpm
2) Cold engine, rail pressure at idle, 2000 rpm
3) Hot engine, rail pressure at idle, 750 rpm
4) Hot engine, rail pressure at idle, 2000 rpm

At hot idle, i only have a rail (crd) pressure of 4900 pci, seams low to me
Ben-e-boy
26th February 2013, 11:35 AM
I cant help you with the scan gauge.

But what other things have you tried/replaced to fix your spluttering problem.
WogsRus
26th February 2013, 12:06 PM
Noting yet, been through all the connectors, all look good no issues there. Mr Nissan has car on thursday and said its fine to drive till then.
Ciapek
26th February 2013, 04:10 PM
Hot @ 2000 11500 psi
Hot @ idle 4940 psi
Cold might take a while today
From an Ultraguage .
Cheers


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WogsRus
26th February 2013, 05:37 PM
Thanks mate, almost sot on to mine, so it think fuel pump is ok pressure wise.

BTW, if i had a blow cylinder or valve, i am assuming the car would run like crap?
Ciapek
26th February 2013, 05:51 PM
Wogs, not sure what issues you are experiencing, but from my own history...
2010 auto, I have had the accelerator pedal assembly replaced at 40k due to power delivery/response/ flat spots/ rpm hanging.
All good since.
My two bob mate....


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WogsRus
26th February 2013, 06:42 PM
been there done that, now a new issue has arisen, see here

http://www.nissanpatrol.com.au/forums/showthread.php?18548-2000-rpm-miss-fire-(nofire)-when-cold-only.-What-nowwwwww-HELP-ZD30
Maxhead
26th February 2013, 07:09 PM
Possibly the new TPS faulty as well???
WogsRus
26th February 2013, 07:12 PM
could be who knows, Thursday will reveal all.

Nissan say all good to drive till then
Maxhead
26th February 2013, 07:15 PM
Hope it turns out well..good luck.

Great info here as well !!!!
happygu
26th February 2013, 08:27 PM
Won't be anything blown - just electrical gremlin by the sounds of it....
WogsRus
26th February 2013, 08:35 PM
GRRRRRRRRRRRRRR worst gremlin of all to have
Yendor
26th February 2013, 08:42 PM
What is the engine temperature reading according to the scangauge when the problem occurs?
WogsRus
26th February 2013, 08:50 PM
humm cold, 14 deg C, or so
happygu
27th February 2013, 07:06 PM
Faulty TPS Sensor ( again ) , Faulty ECU, Faulty Fuel Rail Pressure Relief Valve.....
happygu
27th February 2013, 07:07 PM
Does it still do it with the scan gauge disconnected?
WogsRus
27th February 2013, 07:07 PM
sounds like warranty job