LB7: Runaway Help

[02greysixer]

One won't do it but if the other 7 are worn/leaking badly it's possible. Surprised your cp3 is able to build rail to start with an injector leaking that bad

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[kx500]

One won't do it but if the other 7 are worn/leaking badly it's possible. Surprised your cp3 is able to build rail to start with an injector leaking that bad

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It's a pretty good mist of fuel coming out the hole

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[Awenta]

So what is your pressure then?

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[kx500]

So what is your pressure then?

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Pressure?

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[Awenta]

Pressure?

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Fuel rail pressure. I agree^^ usually if one is dumping so much it's tough to build enough pressure to start

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[kx500]

The fuel rail pressure was staying around 4500 to 5529 psi. It's hard to watch when the RPM is racing up

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[catman3126]

any smoke when it does this? black I'm guessing, and you cant watch throttle position yet? did you try disconnect the tps and see what that did. it should start just no rev.

 

[kx500]

any smoke when it does this? black I'm guessing, and you cant watch throttle position yet? did you try disconnect the tps and see what that did. it should start just no rev.

It smokes bad. And a fire ball rips out the exhaust. I have not tried the throttle apps. I have it tour apart waiting for a fpr.

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[Burn Down]

Did you run the compression test on the cylinder that was leaking fuel? I have had engines try and run away like that when the intake valve drops and takes the tip off the injector, that cylinder starts pumping fuel into the intake and feeds the other cylinders.

 

[kx500]

Did you run the compression test on the cylinder that was leaking fuel? I have had engines try and run away like that when the intake valve drops and takes the tip off the injector, that cylinder starts pumping fuel into the intake and feeds the other cylinders.

The compression in that hole is right on with all the rest.

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[Awenta]

Why did you get a fpr?

Unplug it and see what it shows

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[kx500]

Why did you get a fpr?

Unplug it and see what it shows

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I tried that and I had no way to shut it off.

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[kx500]

https://youtu.be/pw4QRlGUlAc this is all I got to show you.

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[chevyburnout1]

What and where did you get these new injectors? That looks exactly like a truck I did for a customer of mine. He supplied the "new injectors". They literally cost $100 a piece and did basically the same thing.

 

[02greysixer]

After seeing that my money is definitely on shit injectors. I bet the smoke smells like raw fuel and burn your eyes? Either have them tested by a Bosch facility or buy Bosch remans and install.

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[kx500]

What and where did you get these new injectors? That looks exactly like a truck I did for a customer of mine. He supplied the "new injectors". They literally cost $100 a piece and did basically the same thing.

They are Rehman injectors. I wish they would have cost a $100 a piece lol

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[Awenta]

I agree on injectors. Get them tested.

Did they come with a sheet?

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[kx500]

I agree on injectors. Get them tested.

Did they come with a sheet?

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Yes they're on their way out right now. I just wonder what's wrong with him

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[Burn Down]

Who's injectors are they?

 

[Awenta]

Pensacola?

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