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cel 123 code,no cooling fan 700 1992

It may be best to do as you did for your cylinder head replacement. Disconnect battery. Observe safety!

De-pressurize the fuel system. Pull the fuel rail, with injector attached, out of the air intake port.

Some may allow the fuel rail to dangle, connected, over the backside of the engine. Some may fully disconnect the fuel lines (observe safety and prevent contaminants from entering the fuel lines). Gasoline will spill. No open flames and plenty of ventilation!

Proceed with the remaining disassembly to remove the air intake port, gain access to the ECT and effect test, repair, test, and so on.

Indeed, reading up on multimeter use will help you. You probably want to research and learn how to use a multimeter in the various test modes (continuity, resistance (ohms), and volts). You can find an inexpensive digital multimeter from Harbor Freight, a pawn shop that sells tools, or your craigslist (buyer beware!). The multimeter may need a new battery. One that uses a nine volt battery may be best for continuity and resistance checks.

Have a car-repair-savvy family member or friend that can help you? Did someone help you with you cylinder head removal and installation? If you resided in a large and filthy midwestern city with an arches and a baseball cardinals next to the malodorous missouri and mississloppi rivers, I could stop in and help you.

Though, as you learn, you may want to test the wire harness connection between where you cut the wires and the engine control ECU. That is if the ECT you have works. This board and the 700-900-90 FAQ (See FAQ, above) offers info on how to test the ECT while in the cylinder head and when removed and engine control wiring.

Though you may merely need to solder the wire connections that you cut, seal them up. Put all back together, and best hopes it all works.

It's been a little while for me. So others with more recent hands on with the repairs you are doing can offer advice.

Questions?

Hope that helps.

Buttermilk Boy MacDuff (has no buttermilk).
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New 1 cel 123 code,no cooling fan [700][1992]
posted by  tinkerbelle  on Fri Sep 23 18:13 CST 2016 >


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