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| hi .. I have 1999 n14 instilled ln Volvo truck, truck has been park for a year and . When I start truck running idling nice and smooth for 10 or 15 minute and then idle is , going up and down and n cluster yellow and red light stay on all the time , and giving me a code PID 168 and SID 254. I clean fuel tanks and put fresh fuel, I change fuel filter but still is doing the same .I check coolant level and oil level is fine, I check all fuses is good , can some one tell what could be the problem | |
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Cummins N14 start but after 15 minuts ideling idel is going up and down
