Removed ECM. Will elec fan still work??
03-20-2002, 09:46 PM
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Removed ECM. Will elec fan still work??
I was wondering if it would or if it came out with the ECM harness in my 86 Z-28. And if it did come out. How would I go about rewiring one?
03-21-2002, 10:54 AM
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Nope; won't work any more. ECM controls the fan. If you have dual fans, the secondary fan will still come on at the very high temp, but that's it. You'll want a relay and a cooler fan switch.
03-21-2002, 10:56 AM
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another thing im worried about are gauges, you could just run a ign wire from fuse panel to the relay for the fan on the firewall so it will come on with ign, thats what I would do anyways, put inline fuse of 20 or 25 amps on it too
good luck
good luck
03-21-2002, 02:21 PM
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Car: '92 Z28; Dk Teal; Her Pkg
Engine: 305
Transmission: Richmond 6 Spd
Axle/Gears: Moser 9", Detroit Locker, 3.70
If your '86 Z was carbed (LG4 vin H, or L69 vin G), then the fan is not controlled by the computer - it was controlled by the A/C selector switch and a temperature switch in the RH cyl head, but if it was a TPI LB9, then the ECM controlled the fan & you will need to install a variable or fixed temperature fan control switch (available from Pep Boys, or other local auto parts stores).
03-22-2002, 10:55 AM
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Car: '92 Z28; Dk Teal; Her Pkg
Engine: 305
Transmission: Richmond 6 Spd
Axle/Gears: Moser 9", Detroit Locker, 3.70
If you kept fan temperature switch in the RH cyl head, and the fan relay, then it will function as it did previously. As I indicated above, turning on the A/C switch will also turn the fan on.
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