Hello everyone, New to the forum, I apologize in advance for my English, I use a translator.
The problem is not permanent, it may work fine for 4 hours out of 10 hours of use.
Both hot and cold.
However, it starts all the time with no problem.
I'm having some trouble with a Mercruiser 305cid 5.0 efi v8 engine using the Mefi 1.
-1 Slow down idlle. (400 rpm)
-2 no power (rpm limited)
-Smoke and oil consumption.
Using a code reader with a paper clip and a continuity multimeter. I get 3 fault codes.
-14 high temperature (high signal) ECTs
-21 TPS Trothle Position Sensor (high signal)
-33 MAP manifold absolute pressure (signal high)
In case of doubt, last year I changed / realized:
The sensors:
(all new)
-Ect Temperature probe.
-Map sensor
-Time
- knock sensor.
-Ignition:
(brand new) distributor, coil, cable, spark plug
-injection:
new injectors, and all TBI rebuild
- Check the electrical harness according to the mercruiser procedure. (pin by pin/connector by connector)
- Check engine compression. Over (10.5Bars) on all cylinders.
I'm out of ideas. (I'm afraid of a faulty MEFI 1 ECU)
By chance do you have any?
Thanks for reading.
Sorry again for my pronunciation and my writing.
Good day friends
The problem is not permanent, it may work fine for 4 hours out of 10 hours of use.
Both hot and cold.
However, it starts all the time with no problem.
I'm having some trouble with a Mercruiser 305cid 5.0 efi v8 engine using the Mefi 1.
-1 Slow down idlle. (400 rpm)
-2 no power (rpm limited)
-Smoke and oil consumption.
Using a code reader with a paper clip and a continuity multimeter. I get 3 fault codes.
-14 high temperature (high signal) ECTs
-21 TPS Trothle Position Sensor (high signal)
-33 MAP manifold absolute pressure (signal high)
In case of doubt, last year I changed / realized:
The sensors:
(all new)
-Ect Temperature probe.
-Map sensor
-Time
- knock sensor.
-Ignition:
(brand new) distributor, coil, cable, spark plug
-injection:
new injectors, and all TBI rebuild
- Check the electrical harness according to the mercruiser procedure. (pin by pin/connector by connector)
- Check engine compression. Over (10.5Bars) on all cylinders.
I'm out of ideas. (I'm afraid of a faulty MEFI 1 ECU)
By chance do you have any?
Thanks for reading.
Sorry again for my pronunciation and my writing.
Good day friends