P0093A ? Need new injectors???

[Frederick10]

My service engine soon light keeps coming on when my Edge tuner is turned up. Hooked the scanner up to see what the problem was and im getting a P0093A code. Looked that up on All Data and says there's a major fuel leak in the fuel delivery system. Any thoughts or help would be great on what could be going on and whats the best way to fix the issue

[jstncse]

Sounds like Fuel rail pressure is down. What level are you running? Any white smoke at idle? Does it do this with stock tuning?
CP3 could be bad, Injectors could be bad, or you could be asking to much from a stock system.

[cumminsDK]

What year is the truck and what engine is in it. check the rail pressure relief valve first. also post all truck info in your sig. including all mods.

[Frederick10]

It seems to only show the code when its all the way turned up. Level 5. Idle is fine with no white smoke. It does not do this with the stock tuning. What is CP3? Im new to all of this.

[Frederick10]

The truck is a 2001 Chevy 2500HD Duramax LB7. The Edge tuner has five levels:
Level 0: Stock
Level 1: 40 Horsepower - 150 Foot Pounds of Torque
Level 2: 60 Horsepower - 180 Foot Pounds of Torque
Level 3: 75 Horsepower - 200 Foot Pounds of Torque
Level 4: 90 Horsepower - 250 Foot Pounds of Torque
Level 5: 125 Horsepower - 325 Foot Pounds of Torque

The truck has a 4inch MBRP Cat back system with Delete Pipe, AFE Stage 2 intake, and the Edge Programmer. Hope this helps, How do I check the rail pressure relief valve? Im new to this.

Also the truck seems to only have the problem when im on it and it's turned up on level 4 or 5.

[jstncse]

The CP3 is the fuel pump that creates the extremely high pressure required to run the duramax. If this is bad or the program is trying to run to much fuel the stock CP3 can not keep up.
I think your stock CP3 can not keep up on level 4 or 5, but is probably fine for everyday use.

[Frederick10]

So you think the CP3 isn't capable of handling the amount of fuel required by the programmer? It handled it before, now im just wondering if it's getting tired.