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It has nothing to do with running low on gas, this p1121 is a valve issue. You need to replace the 3 way coolant valve. They go bad over time....
...The ecm is looking for temperature chances to accompany the 3 way valve changes. Maybe relocating the heat storage tank sensor to a small...
If the 3 way valve you mentioned cause both of those codes? It seems that both codes happened at the same time.
The video said it was 3 way and when the engine got hot it would switch to the other side. So I am taking that the valve should not be changed.
Is it your opinion safe to drive with the CEL still up on the dash? Just not long distances? I have heard of reports of people driving it for a...
Maybe the muffler valve is stuck closed? For the case of dellrio, the valve might be stuck closed intermittently? A modest increase in exhaust...
I did this yesterday and took the 3 way valve out through the top. You don't have to go through the headlight but its very accessible that way....
hi ibarrack, any updates?
That's the topmost hose of the valve, right?
I'm glad I don't live near you and do my own work........... minus $125 for an aftermarket catalyst, minus $75 for a used actuator and minus $140...
Thanks. Can you tell me where usually the engine water pump is?
Unlike some people, I appreciate being corrected! Thanks for clearing things up man. I prefer to error on the side of caution. Posted via the...
At least pick up a Lisle no spill funnel it will aid in the refilling of coolant. And if you have an air compressor consider an Airlift. The...
Exactly! What did the dealer charge you for? They don’t forget to charge for everything they can. Even paper towels and hand cleaner are charged...
...the stealership recommended? Many times when there is a bad 3 way valve, they will also find coolant leaking from the engine water pump. I'm...
Gen 3 was the first Prius to have any form of EGR, but you might have seen some posts that described the engine's Atkinson-cycle-via-valve-timing...
That person is preying on your ignorance to sell you something that's not needed. A defective 3-way coolant control valve will trigger a CEL...
...Having trouble following this thread. Is it the 3 way valve you changed? I thought that was easier to get too as I may need to do mine soon...
Now would be a good time to check for thrown codes via the OBD2 port. The heater issue might be a faulty or stuck 3-way coolant flow control...
You have a bad 3 way coolant valve. A dealer would charge about $500 to replace it. The part costs $77 on Amazon. This is the cause of the...
