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ECU?

Engine

Model: 944, Year:1984, Mileage:135000, Type of use:Street use only
Hi George, I still have 2 cylinders that are not firing. I checked the plugs and have spark, I replaced the intank fuelfilter screen and rechecking the fuel pump I have 12+ volts. The pump appears to be working. I have not yet got my hands on a fuel pressure test gauge, although I did remove the pump, put voltage to it, and fuel shot out good distance. I used a noid lite and the injectors appear to be fine. I did replace the injectors to the cylinders that were not firing as well as the fuel pressure regulator. I have just checked the compression and all cylinders range between 180 and 184. Also if I let the car idle it barely skips yet the exhaust heats up at the catalytic convertor even after rammimg a rod through it. Should I consider checking the ECU? and is this just a replacement item? Thanks again

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