Zd30 power loss.. cnt even pull skin off the custard..
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Zd30 power loss.. cnt even pull skin off the custard..
Hello there fellow patrol family.. having bit of drama with this pootrol of mine... now ever since i bort my bus it had a random high idle... aftr a few months and a few dollars latr i finally found and fixd the problem.. it seems it was a faulty throttle position sensor dwn by the throttle pedal assembly...yayy... but just resently on another note it has lost power.. (was doing it befor i replaced tps) i thought it might have been leaking intercooler so i replaced with an aftrmarket one wiv the end tanks tig welded up.. im seeing a solid 18-psi on my boost gauge with my dawes and needle valve set to just open... but it feels like a slug.. i can barely get it to hit 80ks downhill... lol.. and further more its drinking alot of juice... tryed without dawes and needle valve.. boost is all over the show.. the lighter the right pedal the higher the boost goes up... (if i feather the gas) but then when u go to put your foot down boost actual drops off right dwn to like 5 psi.. then if u let u foot of the throttle and back on it will instantly shoot upto 15psi... wasnt liking that so put dawes and needle valve back on...
Heres whats on the motor so far...
Blocked egr
Dawes and needle valve.. sits arnd 18psi...
Hpd catch can
Hpd maf housing and lid
Aftrmarket intercooler
4 inch stainless snorkle all the way to the airbox
manter dump pipe bakto standrd system
Ok heres what ive done...
Injector pump
Cleaned maf
New battery terminals
Extra earth straps
Replaced all vacume lines
fuel filter
Oil filter
Air filter
Replaced tps
Replaced factory intercooler
Glow plugs
Injectors
Ecu and glow relays
Checkd and tidied up all lose/messy wiring
Disconected batterys for a few hrs multible times
Getn a ecu talk which will hopefully help wiv diagnosing problems... but im thinking if its boosting ok.. then it must be a fueling problem... cleaned the maf few times with no noticeable difrence... thinking might be faulty.. anyone knw where to source a replacement.. refuse to pay what nissan charges for anything...
Mate i reckon i will have a good second hand maf somewhere. If not, pm Scott, Covo, i sent him one for a test he might still have. But i reckon ill have one...
Hay mark im keen to take u up on that offer.. hw much u wnt? if its just the maf and is only a matter of switching it out for another i will be a happy man.. haha
No worries mate. Happy to help. I just need to see what i have. Im sure i have one or two somewhere in the garage. But its a mess at the moment with my patrol in pieces. Ill look tomorrow mate. Then we'll worry about costs.
I bloody hope it is a maf. Lol. But i do remember a guy with a crd and he said his patrol just had no guts. Wasnt hitting limp mode though. He bought a new maf from me and rang me up so happy as the maf was the culprit.
Sent from my SM-P600 using Tapatalk
Wires at the plug look good... havnt checkd voltage.. waitn for my ecu talk to show up.. but it feels like its fuel deprived.. hence why i think faulty maf...
Geezus. Is there anything you didn't replace on the thing. To me this is pointing to a bad MAF sending wrong signals, thus, ratio is out of whack, hence the high fuel usage. What are your EGT's like, if you have the gauge ?
Haha ye i knw ive replaced just about everythng i cn thnk of.. befor it decided to be a slug i was running arnd 26psi and it was running mint.. currently if its boostn then egts are realy low.. around 250-350.. if boost goes below 5psi the egts climb to arnd 400...
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