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Gtr Keeps Stopping ?

GTR Trev

By GTR Trev,
in General Maintenance

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GTR Trev Apprentice

GTR Trev

Posted
Posted

Looking for some fresh ideas.

My brothers R 32 GTR keeps stopping after running for about 3 to 5 minutes.

It just shuts down as if it is out of fuel, then you have to pull over and re start it.

So far we have tried many thing including the following.

- drained and replaced fuel.

- replaced the fuel pump.

- installed the earth bypass on the fuel pump.

- replaced the fuel filter.

- tryed driving it with the fuel cap off.

- replaced the fuel pump relay.

- swapped the ECU.

- spark plugs replaced.

All with no change what so ever, If any one has any ideas of what else we can try or if wore comes to worse , where to take it in Adelaide for repair, we are all ears.

Cheers Trev

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https://www.sau.com.au/forums/topic/291535-gtr-keeps-stopping/
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blind_elk Grand Master

blind_elk

Posted
Posted

Have you cleaned the fuel tank? Once heard of a similar problem (in a Patrol) - turned out to be a piece of plastic that would get sucked onto the fuel pump. As soon as the engine was stopped, the plastic floated away.

Moodles2 Grand Master

Moodles2

Posted
Posted

What I think is most likely: Try a different fuel pressure regulator, injectors might be clogged and need cleaning, solder gone bad on an AFM (check DIY section for guide how to fix a AFM)

Long shot: faulty O2 sensor (unplug them both so ECU runs in open loop permanently), I only say this because it seems the car is running fine in open loop while warming up, and when it goes to closed loop it starves itself of fuel and stops.

Check the SA subforum for a sticky with trusted workshops, if you live in the northern suburbs send me a PM i'll give you the details of my mechanic who specializes in GTRs (r32 in particular)

Jmaac Proficient

Jmaac

Posted
Posted

ignition module/power transistor. most common sympton people experience is a missfire however when they get real bad they will intermittetly cut all power to the ignition until it has cooled (generally).

is it difficult to re-start?

GTR Trev Apprentice

GTR Trev

Posted
  • Author
Posted

thanks guys

The fuel tank was completly cleaned out.

When it stops you need to turn the ignition all the way off, after about 2 seconds you can hear a faint relay clicking noise from around the ECU area. You then turn the ignition on and the fuel pump seems to run for an extended period ( as if it has not been started for a week ). Then you can restart it and drive it home using minimum throttle.

Last night it was started in the drive way and left idiling for 15 min ,it then started to splutter and barley keep running.

we can swap my ignition module over and eliminate that in the next couple of days.

cheers Trev

GTR Trev Apprentice

GTR Trev

Posted
  • Author
Posted (edited)

changed the ignitor last night as it was an easy swap but no change.

Contacted alarm installer and Alarm is only connected to starter motor and not ECU.

We will start looking at the rail pressure and regulator next as well as the AFM,s.

may also give unplugging the O2 sensors a go.

Cheers Trev

Edited by GTR Trev

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