Hi Team,
I have spoken with Chaz on the forum, in person... who I would like to publicly thank for his genuine concern, guidance and suggestions... Mate, you have been a true champion for me... !!
My problem:
ZD30 2003 Nissan Patrol 130K - Beaudesert Exhuast 2 1/2 inch / Dawes Boost Controller / Boost 15 PSI / Needle Valve / Provent 200 / EGR / Lift Pump / Boost Gauges before and after intercooler / EGT Gauge (range 600F @ 100K flat road - 1000F @ 100K uphill...
November 2011 - Simpson Desert - engine light ON with big loss of power - this was intermittent, progressing to ON for remainder of drive home (1000+K) - Nissan air filter - New MAF sensor - New fuel filter changed on the trip - No effect on the warning light
Description of fault - engine light comes ON - big loss of power - turn vehicle OFF - restart - no engine light ON and return of normal power... other times, after restarting engine, warning light still remaining ON and big loss of power still...
December 2011 - Nissan dealership - $120 - P7 injector pump - suggested to replace the injector pump...
January 2012 - Second opinion - $350 - P7 injector pump - suggested to replace the injector pump... 2 days later, vehicle back to normal performance - nothing wrong - all very good
February 2012 - Warning light ON/OFF intermittently without a pattern - sometimes with loss of power and other times without loss of power - no pattern noticed, except MAYBE, if the vehicle is put under load whilst RPM is < 2500 - not sure about this though...
March 2012 - Lift pump close to tank with a small cheap filter before pump - vehicle seems to be driving normal MOST of the time - warning light on dash and big loss of power occasionally - turn vehicle OFF and restart - warning light goes away and return of power - this isn't like LIMP mode where there is a temporary loss of power if ECU recognises 18PSI... unless I have a wrong understanding here...
So now, vehicle has been operational with occasional warning light/power loss - BUT, yesterday... driving home (with light trailer in tow) - sudden rise in EGT and no boost (<5psi)... no warning light ON and no loss of power, other than myself driving with less right foot due to temperatures...
Anybody have ANY ideas what may be wrong OR any guidance toward who to approach, in Queensland, that would be able to fault find this problem... I am NOT convinced (yet) that it is the injector pump... and lean more toward an electrical or other problem...
Thanks for reading and your ideas...!!
Lindon