CM2250, fuel leak mystery, please help!!

[snailexpress]

(01-27-2018 )JMBT Wrote:  Snail: have you checked the ECM cooling plate, behind the ECM? Maybe?

Signature620: I have ordered both those parts even though the old ones looks fine. I will be replacing them Monday. I hope that gets it.

Still can’t figure how it could be leaking there yet performing so well?? Also only losing 200-300 psi on leakdown test??

Yes I did it first because it was wet ECM. Everything is dry behind ECM only fuel in wire loom and plugs. Fuel lines over ECM all was dry. Fuel lift pump is dry. Mystery.