This is true for early Digifant FI wiring harnesses like 86/87 but it was changed in later years and the harness may have been updated by a PO. The later year harness only powers the ISCU and ISV when the fuel pump is on. Mark Germain wrote: > Hi > > I am not an expert but chances are the ISCU could be bad. The ISV should be humming when the ignition key is ON without the engine running. > > You should try with a good ISCU. > >............... |
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