Your injectors have nothing to do with it. A code 66 is caused by one of the following:
Open MAF circuit
Open VPWR circuit to MAF sensor
Open PWR GND circuit to MAF sensor
MAF circuit shorted to ground
Faulty ECM or MAF sensor
Air leak before or after MAF sensor
MAF sensor disconnected
Start checking!
Take care
~Chris
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Retired Moderator
MustangNet
My site:
JimPorterRacing
RACECAR spelled backwards is RACECAR
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