DUAL INJECTOR MALFUNCTION 4.1 DFI

1983 Cadillac Brougham

Tiny

buickrick

April, 26, 2008 AT 10:17 AM

Computer problem
1983 Cadillac Brougham V8 Two Wheel Drive Automatic 58000 miles

Computer defaults to only one injector drive, reversed connections at injectors verifying either one works on circuit one. 12V at each injector and good circuit to each drive at ECM. Also verified circuit 450a at ECM is a good ground per service manual. Checked connections at ECM, all seem good. Manual says replace ECM, anyone know of another solution? Can I connect drive 2 circuit to drive 1 at ECM without damage? Any help greatly appriciated, thanks.

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