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Hi all..so sorry to be annoying with this..But the last month I can't get my r34 started..It has only 80k on the clock..so I didn't think I would run into issues... car trys to start but will not fire up..I checked spark plugs..look ok and only 2 months old.. I removed coils as it could be a ignitor not letting the car start..I tried to test the coils on a multimeter ..They all had different voltage. Some 149 some 155 154 150 .4 of my spark plugs came back as 0.8 and others 0.9...will any of this make a difference having the car start ? .. I checked fuel filter to see of their was fuel..There definitely was.I changed to a new fuel filter while there. I can't seem to see any fuses that are dead.unless their is some I don't know about that start the car ?... I have a stock fuel pump..do you normally hear this prime ?..as I hear nothing . I do hear a click sound when I turn the key to acc.. One from tps in engine and a click from the rear ?..is that the pump ?. Weird thing..my consult will not connect to any software..no matter what..It was working 2 months ago.now no..so I can't get a error code..The pin way in the consult will not work either..nothing will show as of engine check light for any codes.. sent ecu to nistune..All is fine they tell me...so not ecu.. For a couple of months I would loose power and acceleration would be dead.then come back..could this be coils ? Or fuel pump ?..wish I knew why consult does not work..Would be so awesome if anyone had a idea ? Thanks

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If a pump was on its way out ..Would it drop in and out leaving me with no power over a couple of months before it died? . Engine would stay on but dead accelerator.. so want to make sure I buy the right thing.as coils seem a bit dear :( .. I'll listen from the engine while I get someone to turn over to acc..but I swear I hear nothing..so appreciate the quick replies to..

Get a mate to hit the under side of the fuel tank while you turn the key on.
This should jolt the pump and get it spinning.

Pump noise will be heard more clearly at the rear of the car.

Thanks guys..I opened the boot..tryed to prime yet I hear nothing..besides I little tick sound with a half a sec high pitch distant sound..I tried to hit the tank..but would not crank over.. I hear nothing around the fuel filter either.. Thanks again..I was not sure if the stock pump even made a sound..of to get a new pump

  • Like 1

Changed fuel pump to a walbro ..and still does not prime :(..no sound at all.. just a small click from the boot..I checked fuel pump fuse and looks good..I've sorta ran out if ideas to what is the issue with this car..does anyone have a idea ?

Changed fuel pump to a walbro ..and still does not prime :(..no sound at all.. just a small click from the boot..I checked fuel pump fuse and looks good..I've sorta ran out if ideas to what is the issue with this car..does anyone have a idea ?

Can you get a multimeter onto the pump power wires? Might be time to take it to a mechanic...

I could get onto the wires..I'll just do it from the plugs from the pump.. weird thing..I can't see the relay box in the boot.. would you think a mechanic or a auto electriction ?.. sux..I would have to get the car on a truck to a mechanic. :(

Get a friend to turn the key while you listen for the clicking.

a quick google search suggests the relay is either in the boot (likely hiding behind trim) or behind the passenger kick panel.

Found it..It's on the left hand side in the boot..sorta above another larger box.. If anyone reads this in the future and needs to find it.. just a tiny metal box.. looks okay when I opened it.. I'll multi meter and see

Heeey all..I was thinking of making my own relay..but before I do this.. can someone let me know..If my stock relay is ok..would it make a clicky sound when the key is turned to acc ? I've pulled it out..used a multi meter and get nothing..can they click and still be dead ? Thanks

You do know how a relay works, yes?

Feed the switching current through its coil, creates electromagnetism, pulls in the main switch by solenoid action. Yes? So if you test continuity (and possibly coil resistance) on the switching side and it tests out, and when you power the switching side it goes click, then that half of the relay is working. If the switched side then doesn't test as short circuit, or has high resistance or will only carry a small current, then the contacts on the switched side are probably burnt.

This (burning the contacts) will definitely occur if you switch large loads with a relay that's not really big enough, and it can also happen when you switch loads with the wrong sort of load characteristic (ie inductive loads) with relays with the wrong sort of contact material (the choices between gold and silver usually make people assume that gold is better but in a lot of cases silver is preferred).

Thanks for that..I was definitely looking how a relay works.. when I open the 34 relay I cant see the contact coil .. I think the contacts on the switch side may be burnt .. Thank you so much for that post I appreciate it.. I wasn't sure if it clicked if it still would work. Im Definitely getting back nothing on the meter when I test the relay..Thank you

  • 2 weeks later...

Oh god..bought a new fuel pump module for the fuel pump in the rear boot..tested it with a multimeter tested perfect.tested my old one..It came back with nothing..so that needed to be replaced.. car still will not start..trys to crank but also fuel pump does not prime..even installed a new genuine walbro 255 .still no prime..coil packs tested for fun .yah .all fine..I'm at a loss to what is wrong with this 34..such a new km car and annoying issues .any other reason why a pump will not prime , ? All fuses checked..All under bonnet relays checked..fine..relays behind ecu..checked..fine

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