Dual CP3 Problems

[DmaxHawk]

Just finished installing another CP3 from PPE along with a FASS 150 GPH lift pump. And with that I'm getting low fuel rail pressure. I logged and it was calling for 5000 psi and it only delivered 2500psi. Double checked pluming and wiring. What would be the cause of this? Thanks

 

[sweetdiesel]

You have anyway to check supply pressure?

 

[DmaxHawk]

Going to try to check it

 

[LBZrcks]

Is this just at idle too?

 

[DmaxHawk]

Is this just at idle too?

Not sure, the guy installing it monitored it. Ill have to find out

 

[2500HeavyDuty]

messed up controller?

 

[DmaxHawk]

messed up controller?

Any way to check for this?

 

[2500HeavyDuty]

i dunno, the current could not be split right and cause the amps to be splits in half.

u connected the controller right?

 

[sweetdiesel]

messed up controller?

wire problom would max out the cp3

stuck regulator should be compensated by the other cp3,Unless both are stuck ( unlikely)

rule out supply issue to the cp3, And I would geuss a bad contoller

 

[sweetdiesel]

Any way to check for this?

log rail current or use a volt meter

 

[slowlmm]

i think you may have your lines reversed on your ppe cp3. try switching the top and bottom line or make sure your lines are roured correctley.

 

[slowlmm]

also you can test the controller by unpluggin the ppe cp3 while the truck is running it should make a desteinctley diffrent sound

 

[Stingpuller]

daul CP3's

I had problem like your saying and it was the fuel rail fitting in the rail not tight enough. It was bypassing fuel and would not hold pressure. It has to be tight, I don't mean tight I mean you need it so tight you would think it would break off tight! Can you smell fuel? Is there any fuel coming out of the bypass nipple? Just some thoughts. Jeff