We are driving near Dallas. Torrential downpour and big shallow flooding (3-6 inches.) Made it through, no issues. Stopped for lunch. On restarting, I have a permanent P0607... And 4 hours of driving left today. I assume something got wet. For now I intend to keep going. Is it dangerous or harmful to drive with this DTC?
By that, do you mean it is shown only as a permanent code, and not as a current code? Is the check-engine light now on? If it's only a permanent code, I'd assume that something got wet, and is not now. Maybe worth checking the heated oxygen sensor wiring when convenient, see if there's a reason its water-resistance might be less than designed, or a way to improve it. What inspired you to scan for codes after lunch?
Pretty sure he had a check engine light on restart after lunch. Maybe try this thread: Well.... my annual P0607 is back (Calling the Gurus) | PriusChat
Thanks... It is historical and current. Doesn't clear. Check engine light-inspired... Continuing south. Maybe sunshine in Waco?
Mid-day yesterday, the check engine light went out on its own. About 24 hours after the flood->code incident. I'm going to assume it was Big Splash --> P0607 -> Dry Out Over Time -> All's Well. :-D
Back home, got a big splash, this time a different code set... Now I'm suspecting a specific problem: * Got P0138 O2 Sensor code, plus P0607 * Next morning, clearing codes worked This is now a painful intermittent thing. I've heard that sometimes water can impact the emissions system??? I'm about to jack up the car and take a look-see... but (assuming there's nothing obvious like a damaged cable) this sounds like a potential time drain to diagnose. Does anyone have experience diagnosing issues that only show up when the car has been recently drenched? Any hints would be mucho appreciated.
Start with a visual check of the wire insulation integrity near where the wires connect to the heated oxygen sensor under the car.
I've never seen it, but heard the O2 sensors can go out if they get wet. For a 2011 Prius, Toyota wants around $173 but O'reillys has Denso's for $137
