adam@delco Posted April 20, 2018 Share Posted April 20, 2018 2012 chu has two injector faults 652,653. 652 shows open and 653 shows shorted to high. Ohm checked both injector valves, and compared to other four injectors, the harness to the ecm, and tried a know good ecm. Has anyone had injector harness failures?? The injectors and cups are only a month old, so I'm assuming the injectors are good. Haven't tried swapping injectors yet. Does anyone have any ideas or things I should be looking for? Quote Link to comment https://www.bigmacktrucks.com/topic/53159-mp8-misfire/ Share on other sites More sharing options...
fjh Posted April 21, 2018 Share Posted April 21, 2018 Yes Injector harness issues have happened the harness is all one piece! Quote Link to comment https://www.bigmacktrucks.com/topic/53159-mp8-misfire/#findComment-397253 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.