weird fan cycling and cel flashing someone help

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06-13-2004, 01:24 PM

mrmodex

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Join Date: Sep 2003

Posts: 237

weird fan cycling and cel flashing someone help

i recently finished my swap and nw my fans cyle and my ecu turns on and off and my cel is blinking i cant figure it out someone help

06-18-2004, 08:53 AM

LICmotorsports

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Car Info: MY04 STi some call it a race car

Well it sounds like you may have the Test Mode connectors plugged in. They are the two green connectors under the dash near/above the OBD-II connector. When plugged in, the fans will cycle and the CEL will blink rapidly, but the ECU turning on/off sounds like it could be something different. Make sure you have your power wires correct, such as from the main relay, battery, and ignition. Hope this helps.

-Adam
adam@licmotorsports.com