ThosL Posted October 2, 2020 Share Posted October 2, 2020 Not performance related, as least as far as I could tell. Knock sensor, two misfire codes, MAF sensor and cat converter. I changed the plugs. Would changing out the MAF, knock sensor or coil as recommended make any difference in mileage, etc.? Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted October 2, 2020 Share Posted October 2, 2020 It may depend on how the knock sensor has failed but, they CAN detrimentally affect performance by causing the car to over-retard timing. many people have found cracks in the knock sensor and had good luck with $15 or w'ever replacements. pay attention to which direction the cable 'points', remove old sensor, clean underneath , bolt new one on, don't overtorque it, plug it in. 1 Quote Link to comment Share on other sites More sharing options...
ThosL Posted October 2, 2020 Author Share Posted October 2, 2020 I bought a MAF sensor online. Emissions test is coming up. For a 1997 2.5 the requirements are lax. Quote Link to comment Share on other sites More sharing options...
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