At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
I failed my emission test because the testing agency did not know what a code meant.(the U0121 code)
I had the following codes:
OBD Results trouble codes
comm: Pass U0101
Mil: Fail U0121
KOEO: Pass U0155
Can you tell me what these mean and what I need to do to correct them.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
no info generic answer depending on vehicle p1773 has different meanings C2116 is an abs fault your test sheet will show reason for failure A I M is safety also look at sheet and or notify them as to reason your unknown vehicle failed
I presume you meant to write emission test . There will be a certain type of emission that is too high. The test result will tell you which that is. But the first thing to do is have the computer scanned for trouble codes...and start fixing what the computer recognizes as a fault......
you will need expert help for this unless you buy yourself a scanner tool etc.
First step is to have the code or codes read.If the "check engine light" is on there will be a reason and should be a code or codes to be read.Once you have the codes,you can determine the correction needed to get that "check engine light" out and a valid emissions test completed.Get back to us with the codes found.
your vehicle has a vent valve solenoid located on the evap canister under the back end of the vehicle. You most likely have a bad vaccuum line going to the evap caniser. Have the vehicle smoke tested to verify. If no leaks are found replace the vent valve solenoid
First the fault codes, U110C is No Fuel Level Bus Message U0155 is No Cluster Bus Message. Unfortunatly you have to be able to communicate with the instrument cluster with your scanner to diagnoise and I do not think an aftermarket scanner can do this.
po442 is evap emission control system leak (small) 1 of the lines for emissions is leaking. po455 is-- emission control system leak (large). turn off light with code scanner after it is fixed.
it will not pass the test with the light on, and if u turn off the light they will know when they test it by testing/checking the system readiness function. Go to a Kragen or an Autozone they will run the test to see what trouble code has turned the light on, it is free, post the code back here. Oh have then reset the light after the test.
×