Offroad-Express

Hi ive got a terrano that had the check engine light come up on the dash yesterday and it went into some sort of limp home mode where there was no power at all, when shut down a restarted it seemed to reset and is working ok at the moment, anyone have any ideas? thanks in advance Brett

Some of the Nissans have the water sensor on the fuel filter go through the engine light too.
Might be worth undoing the drain to check if theres any moisture in there?