#4057, "RE: Air/Fuel Gauge Reading Problems...." In response to In response to 3
It takes it a few minutes for the 02 sensor to warm up and the gauge to start taking a reading. Mine has only one light on until the car warms up for like 5 minutes then it starts working
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I used to have a 420A...
'92 TSi AWD
11.8 @ 119mph 470awhp 405 ft/lb torque 30psi on E85 w/ Borg Warner S256 Turbo