[Need Help] Ford Lynx - Engine misfires and stalls at Idle when engine is warm (worst if with A/C)

[jick.cejoco]

Also, given na yung lumabas na trouble codes at yung symptoms, can i conclude na nasa air/intake area lang to?
1) faulty maf?
2) faulty wiring system sa maf, iac, tps??
3) vacuum leak?

Or may possibility paring nasa ignition, fuel or cooling system?


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since you have the diagnostic trouble codes, start from there.

check your voltages at the MAF connector

blue/black battery voltage with KOEO (key on engine off)

gray/green less than 1 volt

gray/black 1.8 volts at 20 degrees celsius
2.2 volts at 30 degrees celsius

violet/white less than 1 volt

black/orange 0.7 volts KOEO
1.3 volts after engine warm up