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Codes P0480, P0622 - seems erratic

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Old 26 Aug 2017, 12:03 pm
Young Cruiser
Join Date: Aug 2014
Location: Mesa, AZ
Posts: 89
Default Re: Codes P0480, P0622 - seems erratic

Steve, thanks for responding so quickly. I forgot to check the O2 sensor today, dang it. I checked the relay box, and there were no spares, nor a relay for the fan. (No monkeying with the wiring is evident anywhere on the car). The fan came on in both speeds. The temp gauge is normal, but the warning light didn't come on at ignition on. I saw it yesterday. I pulled the fan connector plug (4 prong) and cleaned both halves, but it didn't need it. I tried the same with the coolant temp. sensor, but you have to be ET to even put a finger on it, let alone pull it off. Looks like you have to pull the Tstat housing ?
Last nite only the CEL was on, now the batt. light joined it. Again there are 14V when running. I can't find anything "wrong".
So glad the emissions test isn't due this week, but may be next month...
2003 GT Turbo AT
111,111 miles +
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