You can not just put a hi-imp injector in these 84-89 3.2L engines, the injector offset times are 2 to 3 times greater for the hi-imp injector than the lo-imp stock inj. You can use hi-imp injectors in the 3.2L but only with a custom chip that has the proper injector offset times. I know this because I have used Bosch 30lb hi-imp injectors in these motors with a special chip I created.
The DME has no issue firing hi-imp injectors but it must be properly programed for the given injector spec.
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Sal
1984 911 Carrera Cab M491 (Factory Wide Body)
1975 911S Targa (SOLD)
1964 356SC (SOLD)
1987 Ford Mustang LX 5.0 Convertible
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