Hi,
Based on the codes and your description, it sounds like a fuel pressure issue or there are more vacuum leaks you are missing.
If you haven't already, check fuel pressure. I have a feeling it is going to be low. If you look at that attached pic, it is a portion of the diagnostics. It indicates a lean condition on both banks. So, either we have low fuel pressure, a false reading from the ECT, or there is another vacuum leak.
Recheck for other vacuum leaks. Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Next, here is a link that shows how in general to test fuel pressure:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Because it is a lean mixture, I don't see it as a problem related to the ignition.
Here are the specs for the fuel pressure:
2001 Ford Truck Windstar V6-3.8L VIN 4
Pressure and Volume
Vehicle Powertrain Management Fuel Delivery and Air Induction Fuel Pump Fuel Pressure Specifications Pressure, Vacuum and Temperature Pressure and Volume
PRESSURE AND VOLUME
PRESSURE
Key ON Engine Running (KOER) .................... 28-45 psi (210-310 kPa)
Key ON Engine OFF (KOEO) .................... 35-45 psi (240-310 kPa)
FLOW
Flow Rate .................... 21 lbs/hr
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Let me know what you find or if you have other questions.
Take care,
Joe
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Friday, December 18th, 2020 AT 9:03 PM