Question about 1999 Mercury Grand Marquis
Firstly check your 02 sesor bank 1 sensor 1 first because maybe 02 sensor death come out more fuel until air metering cannot control so air metering code came out and spark plug overdose fuel and misfire incur check with ohm meter to get the ohm from the 02 sensor rectify
Posted on Apr 02, 2011
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Posted on Jan 02, 2017
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