Upgrades now no start.

[quinton]

I'm working on a buddies 2008 truck and installed head studs, 60 over injectors, (sent tips off to get honed) Egr delete, up uppes and manifolds and twin kit. Got it all finished up just about ( exhaust is all that's left) and tried starting it up and it won't start. Bleed the injector lines still nothing. Just cranks and only codes it has are these. Seem to be Egr related, turned them off now and only the first one and 3rd and 4th ones come on when trying to start it. I wouldn't think those would have effect on it starting up though would it?

 

[JoshH]

What kind of rail pressure is it building?

 

[quinton]

6k psi right now while cranking. I have a log of it I'll get up later on. I know when I did my injectors in my truck I raised it to 8k but it did start up and run fine at 5k.

 

[mike diesel]

How long have you been cranking?

 

[quinton]

How long have you been cranking?

Almost all day on and off.

 

[mike diesel]

Does it smoke at all while cranking? I put my pedal to the floor while cranking and it fires up real quick. Maybe try that for a few.

 

[sickdiesel]

is it calling for fueling and timing while cranking in the log?

 

[quinton]

Does it smoke at all while cranking? I put my pedal to the floor while cranking and it fires up real quick. Maybe try that for a few.

Not really. Just a small bit like burning rubber on a wire. Ya I tried that still nothing.

 

[quinton]

is it calling for fueling and timing while cranking in the log?

Yes it is.

 

[x MadMAX DIESEL]

Injectors spraying fuel?

 

[quinton]

Injectors spraying fuel?

Haven't pulled glow plugs yet to check, but the little bit of smoke that does come out smells like fuel.

 

[sickdiesel]

SOunds like something it is telling it to not let the injectors fire.

no pinched wires anymore?

could try unplugging everything but the injectors and rail pressure sensor to see if it will start.

 

[quinton]

SOunds like something it is telling it to not let the injectors fire.

no pinched wires anymore?

could try unplugging everything but the injectors and rail pressure sensor to see if it will start.

No pinched wires. I made sure of that. Lol. What all would need to be unplugged?

 

[Dirtymaxx03]

Are you positive it's primed?

 

[quinton]

Are you positive it's primed?

Yep. I cracked injector line 7 and 8 and hand primer is hard.

 

[x MadMAX DIESEL]

Nothing to do with vats

 

[DAVe3283]

It is is reading rail pressure (I think it needs > 20 MPa or so?) while cranking, then it is primed enough to try and start. Once the main pulse turns on, the ECU is turning on the injectors (or it thinks it is). At that point, you have rail pressure and power to the injectors, so it should start.

However, there are some codes that might prevent it from actually commanding injector pulse. Also, be sure to log the actual pulse. It may be commanding fuel (mm3), but not commanding a pulse (us) to the injectors.

If you are not getting a main injection pulse:
First, fix the MAP and/or baro sensors. I have seen that cause all kinds of issues.
Second, fix the intake air temperature sensor (unless it really is colder than -40 out). Though this shouldn't prevent a start, I wouldn't think?

You should now be getting a main injection pulse in the log. If it still doesn't start, check to see if the injectors are actually opening (by pulling a glow plug or 8 as suggested earlier).

 

[quinton]

It did say reduce power when I first tried starting it, before turning off the codes.

 

[quinton]

alright cranked on it some more and got another log. the little bit of smoke does smell like straight fuel. I'm thinking injector stuck. here is the log

 

[quinton]

Idk if the log will work if not let me know.