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  1. S

    P0507 - what next?

    Been playing with my 2005 Nissan Frontier 2.5L (engine is QR25DE) with a 5spd transmission and 180k miles. Dealing with P0507. Idles around 1500 RPM, then when it gets good and warm (minimum 20m driving), the idle will surge from 1500 to 2000, then back to 1500, then back to 2000... Stuff I've...
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    2005 Frontier codes - P0420, then P0507, now P0302

    Hey everybody, long time lurker, first time poster. Have a 2005 Nissan Frontier 2.5L with 5spd manual, 180k miles. Been a great truck overall. I will admit to stupidly allowing engine oil level to get very low earlier this year, this has been my only sin. Restored oil to 5qts upon discovery. I...
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