E99 miss at certain rpms

[Jomax]

Truck is as early as they get, built January of 98. 220k miles, bone stock. CCLB DRW 2wd.

When the engine is cold, the miss isn't there which leads me to an oil issue. Starts to miss after a minute of run time on a cold start. Does it between 1600rpm-2100. At WOT it's smooth as silk.




-Installed a new grey CPS and it ran worse...

ICP at wot is 2490 (a bit weak)

-injectors buzzed out no codes

-Low pressure oil is fine 15psi at idle when warmed up and goes up with rpm.

Icp sensor has no oil inside, runs worse when unplugged

-oil is brand new Rotella 5w-40 syn, with a ford filter

-fuel pressure is a bit low, but being the FPR is probably tired I think it's fine, 55psi at idle.

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[mandkole]

original injectors?

 

[Jomax]

Yes.

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[mandkole]

With a noticeable miss, Id be going there first... they've seen better days after 220K. When I pulled the injectors out of the OBS, 3 of them had broken nozzle springs and absolutely no control of the fuel delivery.

 

[Jomax]

I figured injectors, but figured I'd ask on here.

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