Lly injector Dvt labeling

[JDPlowboy]

Can anyone tell me the corresponding injector with efilive Dvt ? I have an injector hung and shutting off #4 injector with efi live takes away the knock. Let's just say I know for a fact #4 injector on the engine is fine, after swapping in 3 good used ones.

 

[DAVe3283]

I want to say the LLY got the sides of the motor backwards, so it would be the cylinder directly across from #3 (#4).

You should be able to verify this by unplugging the #4 injector and start it to see if the knock is gone. The ECU will probably get mad after a couple seconds, but it should tell you what you need to know.

 

[clrussell]

Number 4 is 2nd one back driver side...

Just making sure your working on the correct side


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[$chultz38]

Isn't it the firing order for the lly

 

[henery97]

I watched my balance rates while I used the dvt controls to try to decipher which one I was actually turning off

 

[JDPlowboy]

I want to say the LLY got the sides of the motor backwards, so it would be the cylinder directly across from #3 (#4).

You should be able to verify this by unplugging the #4 injector and start it to see if the knock is gone. The ECU will probably get mad after a couple seconds, but it should tell you what you need to know.

That's what I figured out. Unplugged #3 and knock went away... Swapped in 3 injectors and it won't go away. Must be wiring... I'll dig some more

 

[JDPlowboy]

Number 4 is 2nd one back driver side...

Just making sure your working on the correct side


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Yep, swapped 2 injectors in and didn't go away, even with it unplugged so I knew I had to move on.

 

[JDPlowboy]

I watched my balance rates while I used the dvt controls to try to decipher which one I was actually turning off

That would work. But when one is hung they don't balance

 

[clrussell]

Yep, swapped 2 injectors in and didn't go away, even with it unplugged so I knew I had to move on.

Figured you knew just checking


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[baggedLB7]

There is a thread on here I think Ben started on the same subject. I don't remember if they figured it out. Ill see if I can find it.

Found it.
http://www.duramaxdiesels.com/forum/showthread.php?t=27243
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[JDPlowboy]

There is a thread on here I think Ben started on the same subject. I don't remember if they figured it out. Ill see if I can find it.

Found it.
http://www.duramaxdiesels.com/forum/showthread.php?t=27243
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So basically, LLY's have problems and no one could provide them with testing to fix it so it's still broken lol

 

[Chevy1925]

Take an injector hard line, cut it in half, weld the hole on the end shut and put it in the rail feed hole to the injector you think is bad. Then start the truck and see if the dvt controls still shut the same injector off.

That's assuming you have a spare one

 

[JDPlowboy]

I have a full set of used lly injectors to try. This diagram seemed to be the most accurate. It ended up being cylinder #5 that the efilive dvt was calling #4