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[Powercrazy3]

Had a cp3 conversion and a fass 150 installed
2011 lml with 125k

Now there is low fuel rail pressure. It's around 18,000 to 20k psi and should be around 29k psi

The cp3 is used, it's off a lbz

Still has slight haze at idle (it was there before the swap and fass install)

When I get on the truck, around half throttle the "change fuel filter" pops up on the dash.

Any input is greatly appreciated.

 

[Burn Down]

Did the CP4 fail?

 

[Powercrazy3]

It didn't fail, and there were no metal shavings in the screen. But the cp4 was weak

 

[LML6600DMAX]

Contact your tuner. It takes can take quite a few tune revisions and data logging to get the truck running 100%


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[clrussell]

Contact your tuner. It takes can take quite a few tune revisions and data logging to get the truck running 100%


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This*^^

 

[Powercrazy3]

 

[Powercrazy3]

Some people are saying that shavings from the cp4 could've got through the filter and into the injectors. I just don't get how it didn't do this before.

 

[Burn Down]

Unplug the cp3 regulator and see what pressure it goes to.

 

[kiwilml]

Contact your tuner. It takes can take quite a few tune revisions and data logging to get the truck running 100%


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Me and my brother both had trouble with low rail pressure.. Do data log and have them look at it again.. May be as simple as tuning.

I just switched tuners recently and my new one still hasn't got all the kinks out..