Have you ever replaced the oxygen sensorAfter the ignition switch melted in november my stang is running lean what do you guys think could have gotten taken out when the switch blew it also took out the main fusible link I have obviously replaced the switch and link please help
the oem injectors on a 1991 2.3 are 14lb.There are numerous sources for replacement injectors and or servicing, but cost and effort here would favor replacement over repair, so I would suggest that you replace them with new 19 lb injectors.
I put 19's in my ranger and it ran rich for a bit, but the eec learned new air fuel trims after a day of driving.the oem injectors on a 1991 2.3 are 14lb.
I tried using 19lb on my stock motor and it ran rich to the point of hurting performance and fuel economy.
19's might require some eec tuning or internal engine mods to make right.