Engine light came on, took it to a shop that put it on the computer and they said I need new plugs, gas filter and rear O2 sensor. He wants to charge me 189.00 for the part, they are cheaper online but I need to know how many prongs the current one has so I can order. Where would I find that information online? Thanks!!
u can download manual from internet or check with a dealer. http://cadillacsts.net/
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