Porsche 924 EFI Conversion, Completed
1978 Porsche 924 had a failing K-Jetronic System (CIS). It was replaced by a Ford EFI system. The ECU, harness, injectors, EDIS module, coil pack, throttle body, mass air-flow sensor, HEGO sensor, and all other sensors/devices were from a 1991 Ford 2.3L (junk yard), except the fuel pump, fuel rail, and crankshaft position interrupter/sensor. The fuel rail was off of a 1997 Mercury Mystique: it fits directly over the continuous injection ports on the Porsche 2.0L intake. The crank position sensor was redesigned (using the original interrupter wheel and a piece of 60/1000 steel) to have the sensor interrupts at the outer edge, and the number of interrupts had to be doubled – This had to be done in order to fit it to the distributor (as the camshaft spins twice as slow as the crankshaft). It was a lot of work, but it is way more dependable in any weather than the old and tired K-Jetronic. No stalls, runs smooth, & 25+ MPG Total mod cost: About 0. Thanks for looking into it! It was a neat project.
Tags: 924, CIS Porsche mod, K-Jetronic conversion, porsche, Porsche 924 EFI, Porsche 924 ford injection, Porsche 924 injection mod, Porsche 924 modifications, porsche-924
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