sorry for that but what is a cp4? If any fuel pressure weakness is an issue, any code would be generated by the ecm?
Since 2 months, the fuel pressure in both lift pump and HPFP lines were analized at least 3 times and nothing wrong with the pressure.
Check my latest post on this thread...
look closely at the blue connector on the picture (harness under the TIPM). One of the brass connector female is melted or corroded. This connector is right under the integrated lift pump relay (on the TIPM). That's why they didn't take chance and bypass this relay with an external one. The male...
https://www.ram1500diesel.com/threads/2016-crank-no-start-intermittant-tipm-issue.72195/?post_id=1138760#post-1138760
Look at the post #10
extra help to solve this issue. It happend to me in the last 2 months $$$$
Hello to all,
I own a 2016 Ram ecodiesel 1500 with 183000 km (113 700 miles) Since 3 or 4 years, once in a while, when I start the engine it stop 2 ou 3 seconds after. Unable to start the truck after. But I am able to start it right after the illuminated dash turn off. No code. And after, the...
https://www.ram1500diesel.com/threads/2016-crank-no-start-intermittant-tipm-issue.72195/?post_id=1138760#post-1138760
Look at the post #10
Exactly the same situation as mine.