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Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 3702
Experience:  US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
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I have a 2005 200 HPDI that has a no start situation. I hav=ce

Customer Question

I have a 2005 200 HPDI that has a no start situation. I hav=ce checked evertyhing and all checks good. Have replace injector drivers with two different sets, I have tried another ecu. cpu sensor, HP pump assy, I can manuualy run the injectors , Has 913 psi fuel pressure etc... This thing is kicking My A**.. Any suggestions ?
Submitted: 2 years ago.
Category: Boat
Expert:  Charles replied 2 years ago.
Hello, my name is***** you for allowing me to assist you today.
Get yourself a short harness and eliminate the boat as a cause. If the engine will start with a harness, you issue is either the key switch, kill switch, or a shorted harness. I have seen all 3 in the past.
Customer: replied 2 years ago.
I have hooked up an alternate harness already, I can disconect the tpi and it will start and bareley run. Ihave litteraly changed and have checked every component and nothing seems to change the issue
Expert:  Charles replied 2 years ago.
Did you swap a TPI?
Have you looked at the fuel?
How is the injector spray pattern?
Customer: replied 2 years ago.
Yes i have swaped the tpi, fuel is fresh, not water, not sure on spray pattern of injectors, i can manualy run them, i can hear them when cranking, i have 913 psi fuel pressure, ive swaped injector drivers with known good ones, all fuses are good, relays are good and operating.....I also am a certified master tech on Mercury and mercruiser, i have 33 years expierience and have never had something tax me this hard... The motor was running, customer shut off, then would never restart. Everything checks, but it just dont work..What am I missing ??
Expert:  Charles replied 2 years ago.
How does the spark look on your spark board?
Customer: replied 2 years ago.
It has seems to have a good spark, not discolored...
Expert:  Charles replied 2 years ago.
Is that just doing a plug read or actually seeing it?
Customer: replied 2 years ago.
Actually seeing it, Stevens spark checker..
Expert:  Charles replied 2 years ago.
When you key this thing up, What is the map and Baro pressures? When it dos try to run, does the Baro change?
Customer: replied 2 years ago.
When i get back in the shop Ill check, exact numbers, i dont recall anything abnormal that jumped out at me...
Expert:  Charles replied 2 years ago.
Sounds good. Tomorrow I will be in the shop as well and will log on after 530 PM CST.

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