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Quick and to the point:
2011 F-150 5.0L, 200,000 miles. Recent engine rebuild (bearings, oil pump, honing, deck flattened, headers, Boss 302 intake, 87 Perf tune, all new OEM sensors)
Included soldering instructions utilized to reuse existing wiring harness.
Test drive felt great for first 3-4 miles. CEL appeared, codes were:
P0010 (Camshaft Position Actuator A, Bank 1)
P0013 (Camshaft Position Actuator B, Bank 1)
P0020 (Camshaft Position Actuator A, Bank 2)
P0023 (Camshaft Position Actuator B, Bank 2)
P2098 (Post Catalyst Fuel Trim Too Lean, Bank 2)
Clearly, somethings not right. Every single one of the solenoids throwing a code tells me either improper/faulty wiring or bad solenoids (doubt it), and the fuel trim code probably means exhaust leak.
Here's what I've done to troubleshoot so far:
Re-soldered new connections, checked for resistance between main PCM connector and WPT-1214s. I do not know what the resistance is supposed to be, but I just wanted to know there was continuity. (there was)
Added 5 (or so) lb-ft to each exhaust manifold bolt. (That was a pain)
I disconnected the flange immediately after the manifold (bank 2), took a wire brush and "cleaned" where the ends come together, re-torqued the flange bolts.
Swapped O2 sensors between Bank 1 and 2.
Sprayed inside all VCT solenoid connections and the main connector at the PCM with electronics cleaner, waited a bit for it to dry out before reconnecting.
Cleared codes, drove it, same scenario. All same codes reappeared. Hard shifts 1-2-3 once CEL comes on. Lugs real bad below 3K RPM, screams concerningly above 4K (timing's probably over advanced or retarded). Idles just fine. Starts just fine. No noticeable ticks, squeaks, or the like.
Got me head scratchin'.
Included photo shows VCT solenoid position upon returning from test drive with CEL.
Any thoughts?
Last edited by PixelPushers; Dec 16, 2023 at 03:47 PM.
Reason: Incorrect Title
If you haven't solved this yet the 2011 Powertrain Service Manual says P0010, P0012, P0020, P0023 are denoted as below:
Description:The PCM Monitors the variable camshaft timing circuti for high and low voltage. The test fails if the voltage exceeds a calibrated limit for a calibrated amount of time.
Possible Causes: Open or short in the VCT circuit
Open VPWR circuit (In other words no power from PCM to VCT I think)
Open or short in the VCT solenoid valve
If I'm reading right It looks like this system (VCT) runs in open loop meaning PCM ignores it until motor is warmed up.
VCT Solenoid Troubleshooting
