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240 Fuel Problems (Long response again) 200 1986

posted by  dave-ed on  Mon Oct 18 15:25 CST 2004
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Sorry for the delay, I took a short vacation. I checked the items as you described.
A) The Terminal 30 is hot all the time (from the 25 amp fuse).
B) 12V is available at #30 and is present on 86/1 terminal. 12 volts go through the relay and are present at 86/1.
C) The Key is turned on. The 86/1 terminal goes from 12v to 0v as you described the coil is energized.
D) The Main relay actuates and stays closed.

I then went on to check for resistance, I unplugged the relay and probed the 86/1 connector, connected the other lead on the meter to a good ground as you discussed. It displayed "No Continuity" or "Out of Range" indication on the meter with the key off. I turned the key on... The meter did not go to 0 ohms, it remained "out of range", I checked to make sure I had good ground and good connection at the connector, it remained "Out of Range." Does this mean that the ECU is defective? Thanks for walking me through this, David..






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