ECON light ON after changing high pressure sensor -

Electronics Wired up? Everyone's got some sort of electrical modification. let's hear about it here.

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Old 08-08-2018, 07:46 AM
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Join Date: Oct 2016
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Angry ECON light ON after changing high pressure sensor

HI, I have an audi a6 c5. The ECON light was not turning off so I changed the high pressure sensor. But now the ECON button only works after I turn my key one turn, so the electronics light up, then I can turn off the ECON button, but the ac still blows warm air. But the ECON button lights up again and can't be turned off when I start the engine. What may cause this problem?
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