Check Engine light on any one had this issue before? code p1121 coolant valve

take it to autozone and get the code read, report back with the codes. If you got this light after getting gas, it might be a loose gas cap.

 

Have you checked the obvious things like oil and coolant levels yet?

 

Since you are an owner who is willing to pay someone else (especially Firestone) to replace the engine oil/oil filter, I would say that replacing the engine coolant valve would be beyond your capability/interest.

Find the best local dealership who can do that job and be done with the problem. A reasonable amount of skill is required when working on the engine coolant system and you don't want a tech who was just promoted from doing oil changes. Good luck.

 

P1121 is one of those codes (particularly in the summer) you can ignore until your financial situation improves. Ignore this comment if you are due for an inspection and your state requires the check engine light to be off in order to pass.
Edit: I just saw you are in texas. Texas is one of those states that requires the light to be off regardless of the reason..

 

If that is the only DTC then you don't have to worry about causing more damage. The issues are 1) the cabin heater may not work well and 2) the engine will emit slightly higher exhaust emissions during warmup than normal.

 

Patrick said it best. This is one of those codes you can ignore. When mine started to go it would come on one day and off the next.. Some days the valve sticks some it doesn't. The one downside is you may not know if something else throws a code. Buying a cheap code reader would solve that.

 

OMG $865 for 2 services? You don't have to worry about the fine print, 15% off $865 is only $129.75

 

This is crazy! First stop shopping "Whole Paycheck" second, the check engine light in a Prius goes off for everything! It is a smart car but that lamp is stupid! I've had a sticker over mine for the last 150,000 miles I'm at 377,462 now. Third find an authorized independent Prius certified mechanic. Fourth Prius's aren't smog inspected in Texas or Anywhere. Fifth a $79. Code reader will report to your cell phone any code in English (American, Texas speak). Lastly order all three mechanics manuals with the savings from your new mechanic and tell him what you appreciate in a mechanic most is honesty when you pick them up.
You will still be $$$$ ahead!


iPhone ?

 

Wrong on your fourth. Prii are most certainly hooked up to OBD during a safety inspection in the counties that do smog checks. In addition a visual inspection of the check engine light is performed.

"The On-Board Diagnostics (OBDII) emissions test for 1996 & newer vehicles consists of the following:

Check 1 - Malfunction Indicator Lamp (MIL) or Service Engine Soon Light, Check Engine Light, Check Engine Symbol check
This is considered the bulb check portion of the test. The light must come on when the ignition is turned to the ON position and the light must go OFF when the engine is started. The inspector answers these two bulb check questions as either a PASS or FAIL. If the light is not working, the vehicle will FAIL the test, because the purpose of the light is to alert the driver of the vehicle that there is a problem with the OBDII system (exceeding emissions) and the vehicle needs to be diagnosed and repaired."

 

I cannot wait to tell Larry McCain I found another reason to Love California EXEMPT. Any car with over 377,000miles and still getting over 43 mpg average on a tank of gas should notify the owner that he has saved over $30,000.00 I consider that check engine light to mean " How the $&@"$ is that possible" which is why Toyota is moving to Texas, to mess with y'all and show you how it's done.


iPhone ?

 

i had the same thing recently.. drove it like that for awhile. bought a control valve online( ebay maybe)... i replaced the valve myself. wasnt extremely hard. removed a few plastic guards, reached down and removed three hoses. that was the most difficult to do ! installed the new valve body, installed the hoses.. no more check engine light.. i did drain about 1.2 gallons of coolant, to do this. not sure if you need to. replaced coolant... not very difficult

 

So basically you were low on coolant from the leaking water pump, which triggered the coolant valve dtc when not functioning properly due to low coolant.

Anyways, glad you got it fixed.

SM-N900P ?