Engine start-up, Lean code 44

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Sgt Gus

Full Access Member
Joined
Aug 2, 2023
Posts
408
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666
Location
Texas
First Name
Mark
Truck Year
87
Truck Model
R20 3/4 ton
Engine Size
454ci/7.4L
Running the truck on it's 2nd break-in.
Running between 2500-3000rpm.
Getting code 44 (lean exhaust).
I assume I need to increase fuel psi at regulator. I haven't set idle timing yet, I was going to get her broke in 1st?
I thought my Maddox gauge said 14psi at location just past fuel filter though...
She is Running hot, but in the garage with back end out, so no air other than fan and aux Running. Gets above 210.
What hits ya? Double ck psi, should I increase yet...don't worry about excessive heat going 70mph in garage?
 

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