Having issues with an 04 rxp with riva ecu keeps flashing check engine after riding a short time but not in limp mode.
has afault stored i cant remember the p number but its coolant temp snsor functional problem.
The sensor tests fine and tried a new one, loom ohms out fine and pins ate ecu are good.
It has open loop cooling but always used to run fine with the same set up it has now.
In the manual it basically says if sensor and loom test ok replace ecu.
Anyone had issues like this?