TimberJack Posted February 24, 2017 Share Posted February 24, 2017 Just replaced the 7th injector on my 08 CHU maybe 2 months ago and everything has been working great. Well got in it this morning and started it up and the regen light on the switch is back to blinking again. So I checked the codes and sure as hell its the same ones as last time. M128 pp326 and the Psid 47 F12. Can a 7th injector just go bad after 2 months? Quote Link to comment https://www.bigmacktrucks.com/topic/48879-7th-injector/ Share on other sites More sharing options...
hatcity Posted February 24, 2017 Share Posted February 24, 2017 sure can. DO NOT let the truck idle for long periods. Always bring the rpm up while waiting Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/48879-7th-injector/#findComment-362519 Share on other sites More sharing options...
fjh Posted February 24, 2017 Share Posted February 24, 2017 In addition to idling you cant have any exhaust leaks check the flex under the cab and yes they can go bad , however its highly unlikely! Quote Link to comment https://www.bigmacktrucks.com/topic/48879-7th-injector/#findComment-362538 Share on other sites More sharing options...
TimberJack Posted February 27, 2017 Author Share Posted February 27, 2017 Ok thanks. I will check it out, do you think I can clean it? Quote Link to comment https://www.bigmacktrucks.com/topic/48879-7th-injector/#findComment-362785 Share on other sites More sharing options...
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