Not idling properly

[LivLandCruizer]

Hi
I filled my kzj78 up to brim with diesal as usual and it konked out at an intersection. I thought the worst put it into park and it restarted. Thing is , it keeps doing it and it’s not running properly. It was fine until I filled up. Any idea
Chris Vancouver

 

[Dprio34]

@LivLandCruizer , Welcome to the Forum and madness! Sorry your first post has to be with a problem. You don't have many responses because your problem could be so many things. Most likely, the problem isn't because your topped your KZ off with diesel. It could be bad diesel, but probably not.

First Thing I would checked the black cable going to the negative terminal of your battery? (AT the Battery negative terminal and the other end at the frame)
Make sure they are securely tight. If it isn't tight, what you describe will happen. Engine will "Konk" out.

If that isn't the problem, I would change the fuel filter.
If it isn't either of those, then you have to start going down other rabbit holes, like ECUs, MAP Sensors, etc.
Start with the easy stuff first. Good luck.

 

[javelinadave]

Is the fuel system venting properly? You could possibly have enough negative pressure that the lift pump can't overcome it and fuel isn't getting fed into the injector pump.

 

[Eurasiaoverland]

I've never heard of a diesel getting starved from vacuum in the tank; the tank cap sjould also allow in air to equalise. And if it happened with a full tank, just after filling, this can be ruled out completely.

If the engine is a 1KZ-TE, read up about the spill valve. These go bad and cause the symptoms you have.

If it's a mechanical pump (1KZ-T), then check the connection to the fuel cut solenoid on the back side of the pump.

 

[LivLandCruizer]

I've never heard of a diesel getting starved from vacuum in the tank; the tank cap sjould also allow in air to equalise. And if it happened with a full tank, just after filling, this can be ruled out completely.

If the engine is a 1KZ-TE, read up about the spill valve. These go bad and cause the symptoms you have.

If it's a mechanical pump (1KZ-T), then check the connection to the fuel cut solenoid on the back side of the pump.

thanks so much... turned into a bit of a disaster now.its been off road for 3 weeks. the spill valve isn't getting power tested checked everything I know of but still nothing. Im not getting an engine light either on dash so I thinks it def electrical. Any help much appreciated. I jumped the spill valve and just taps it quickly on the battery. It started and ran then dies when I stop the tapping, so spill valve is good.