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i have a code p0134 and p0134pd what does pd mean and how can i fix it?
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asked
Mar 5, 2018
by
anonymous
1997 Cedillac el dorado have all codes for all four o2 sensors replaced all four, now i get all the codes again and a duplicate with a "pd". any help? a smog specialist ran a diagnostic and said the sensors have no ground so i grounded them to the chasis and all codes say no activity detected for all four sensors. as well as the "pd"
-thanks
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Mar 5, 2018
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Check the O2 sensor fuses. If the fuses are OK, then you may have a faulty powertrain control module (PCM)
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