1997 Crusader 454 XLI TBI.
These engines are on a 1997 Tiara 2900 open. single fuel tank for both engines. Charter boat.
Engines are dumping a ton of fuel out of the exhaust. Fuel pressure going into throttle body assembly is correct per manual. Compression is 150 across the board. New plugs, cap, rotor, etc. Coolant temp sensor, MAP sensor, Throttle position sensor, Idle Air Control all replaced with new. Throttle body assembly(regulator, injectors, etc) also tested by swapping out from boat known to run correctly. Kind of stumped on this one, as TBI engines were super common in automotive, and all typical running rich issues have been address to no avail. Anyone with some other suggestions?
edit: No 02 sensor on these engines, computers were also swapped out.
These engines are on a 1997 Tiara 2900 open. single fuel tank for both engines. Charter boat.
Engines are dumping a ton of fuel out of the exhaust. Fuel pressure going into throttle body assembly is correct per manual. Compression is 150 across the board. New plugs, cap, rotor, etc. Coolant temp sensor, MAP sensor, Throttle position sensor, Idle Air Control all replaced with new. Throttle body assembly(regulator, injectors, etc) also tested by swapping out from boat known to run correctly. Kind of stumped on this one, as TBI engines were super common in automotive, and all typical running rich issues have been address to no avail. Anyone with some other suggestions?
edit: No 02 sensor on these engines, computers were also swapped out.