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SX225
Background - Motor hesitates around 1500 rpms, if you go full throttle, it will clear up and go up to RPM's correctly. If you do not go full throttle, it will sit and hesitate around the 1300-1700 rpm range. Also, the motor was idling in gear around 500 rpms.
What's been done:
Fuel pressure checked - holds stead at 35 PSI throughout the RPM range.
Winky Blinky - Displays code 1 throughout the RPM range.
Throttle Position Sensor - Tested the throttle position sensor while on the trailer with the Key on. Voltage shown was .75 V, 5V on the 5V common. Reset the TPS to .5 V. Went and ran the boat, still had the same issue at 1500 rpms. With the boat back in neutral, tested the TPS again, it read .8V, reset it to .5V and ran again, did the same thing all over again. Also, the voltage was not a smooth transition during the hesitation at 1500 rpms. Note - the tps was set to .5 with the shutter fully closed.
O2 sensor - Tested the 02 sensor, and it ranged from .4 to .6 V. When I covered the number 1 bleed hole, the voltage would adjust very slowly.
I also adjusted the idle screw and set the idle to 750 rpms.
So, based of what I am seeing, I feel like I need to order a new TPS and clean the 02 sensor and bracket. Agree?
Background - Motor hesitates around 1500 rpms, if you go full throttle, it will clear up and go up to RPM's correctly. If you do not go full throttle, it will sit and hesitate around the 1300-1700 rpm range. Also, the motor was idling in gear around 500 rpms.
What's been done:
Fuel pressure checked - holds stead at 35 PSI throughout the RPM range.
Winky Blinky - Displays code 1 throughout the RPM range.
Throttle Position Sensor - Tested the throttle position sensor while on the trailer with the Key on. Voltage shown was .75 V, 5V on the 5V common. Reset the TPS to .5 V. Went and ran the boat, still had the same issue at 1500 rpms. With the boat back in neutral, tested the TPS again, it read .8V, reset it to .5V and ran again, did the same thing all over again. Also, the voltage was not a smooth transition during the hesitation at 1500 rpms. Note - the tps was set to .5 with the shutter fully closed.
O2 sensor - Tested the 02 sensor, and it ranged from .4 to .6 V. When I covered the number 1 bleed hole, the voltage would adjust very slowly.
I also adjusted the idle screw and set the idle to 750 rpms.
So, based of what I am seeing, I feel like I need to order a new TPS and clean the 02 sensor and bracket. Agree?
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