82 ECM Ground Location Quad Drivers
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82 ECM Ground Location Quad Drivers
I have the shop manual (82/84), Late C3 assembly manuals...
Where are grounds, how do I clean them (especially the "ECM Ground")?
My EGR solenoid, A.I.R. controller, canister purge solenoid have wiring that gives +12V on ignition on pos lead, but ground leads are not grounded (bad wiring or bad ECM Quad Drivers). If I touch the test light ground to a good ground it lights up for all solenoids. How do I test the ECM to see if it is bad (no trouble codes), car runs great if I cap EGR vacuum.
How do I test if pins on the ECM quad drivers are grounding out correctly?
Where are grounds, how do I clean them (especially the "ECM Ground")?
My EGR solenoid, A.I.R. controller, canister purge solenoid have wiring that gives +12V on ignition on pos lead, but ground leads are not grounded (bad wiring or bad ECM Quad Drivers). If I touch the test light ground to a good ground it lights up for all solenoids. How do I test the ECM to see if it is bad (no trouble codes), car runs great if I cap EGR vacuum.
How do I test if pins on the ECM quad drivers are grounding out correctly?
