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misfire and o2
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Question
SANGUINE
So I had a #2 misfire and it was idleing rough and sputtering. I found the plug wire was melted. I put new plugs on it. Then I got a #4 misfire. I replaced the plugs which were really old. Then now I have a #2 misfire again and a supposedly bad o2 sensor. I have codes p0140 and p0302. It runs pretty smooth. Tad bit rough but not bad. When cold it has 60 on the oil pressure gauge. Once warm about 50 and at idle lowest was just over 40. Before plugs it stayed just under 40. I changed the oil, have new gas. The coolant has gone down in the last 70 miles from the full line to halfway below the low line and empty. Can I get some help here? I just bought the truck and I can't get it to pass inspection. Oil has not gone down.
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