89 F150 V8. Common problems associated with a Code 22?
Situation: Turning over, not starting.
-Batt = 11.8V
-LPFP/HPFP/fuel filter check out.
-New rotor/cap, cables and plugs with 0.53 gap.
-Code 22 '1' 22 (Baro Pressure Out of Range)
Reference Voltage on the MAP Sensor on the VREF is 5.0
2.5 on the backprobe
Vacuum test indeterminate.
Changed MAP Sensor. She fired up immediately with strong idle. The moment
I 'slammed' closed the hood, it died.
Currently: Turns over, not starting. Performed wiggle tests and visual of the
harness; nothing obvious.
Also, what would be a lower-than-normal resistance?
The fact it was idling fine but killed when you slammed the hood would appear to indicate a wiring/connection problem. If she cranks, but does not start, all you can do is check fuel pressure when key is on/cranking along with spark at the plugs during cranking. Not a difficult procedure.