QuestionI have been running around from one shop to another.
Just a couple of days ago my check engine light came on and since then I had brought it to Mr.Lube, then too Midaz then to an actual body shop where they deal with engines.
The code that Mr. Lube gave me was 1123 since there book only goes up to 800 or somewhere around there, they were not able to give me a proper diagnostic answer.
Then I had gone to Midaz and checked to see wether they can look up the coding 1123, no answer there.
So because it may be an transmission coding then they referred me to go the nearest shop who deals with transmissions and stuff, they told me the reading was saying something to do with the fuel, not knowing what it maybe.
I had mention to them I had just gotten a fuel injector done just last week through Mr. Lube and the idiot spilled a whole lot of the stuff on to my car,maybe getting into the wiring. SO the expert from this shop where they do transmission says that could of triggered it to go off.
But since then they erased that code, until it appeared again. This is when I had then brought my car to this shop where they do transmission and stuff, and there the ones who told me that diagnostic reading something to do with the fuel.
They did erase the code again and said if it appeared again to bring it back to them.
What do you think?
AnswerP1123 is manufacturer specific, and actually has different meanings on different Hyundai vehicles, depending on the year and model. I should be able to tell you what it means if you can tell me the year and model of your car, as well as the engine size if it's a Sonata or Santa Fe.
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Sorry for the delay, Jennifer. The additional information was posted in my feedback, so it didn't show up in my new questions cache. You say it's a 2001 Accent.
P1123 indicates the computer is keeping the injectors open than it thinks is appropriate for proper mixture. The types of things that can cause that fault are: excessive fuel entering engine, improper mixture measurement (faulty oxygen sensor), or improper air volume measurement.
Here are some things to check for:
1. Clogged air filter or air intake passages.
2. Stuck open purge control valve. (This probably has the highest probabality out of all the options).
3. Fuel injector stuck (at least partially) open.
4. Excessive fuel pressure (faulty regulator).
5. Defective air flow sensor.
6. Defective front oxygen sensor.
This code is in no way related to something that was spilled on the vehicle. If the lamp was on immediately after receiving the vehicle back from having the injectors flushed, it's possible that the chemicals used to flush the injectors were of higher volatility than gasoline, and that caused the code to store. But if the lamp was off after the injector flush, then the flush wouldn't have had anything to do with the check engine lamp.
