QuestionQUESTION: Servicve Engine light came on and I found through previous answers how to run the test. Here is what comes up after I press OFF and warmer at the same time:
.E
E.52
E.55
E.85
E.E
7.0
Please help me understand what it means and how to fix it. Thank you very much!
ANSWER: YEAR and MODEL of vehicle ?
---------- FOLLOW-UP ----------
QUESTION: 1991 DeVille
ANSWER: Press the OFF and warmer buttons and when you see .7.0
Simultaneously push and hold the OFF and HI buttons until you see E.0.0 and then release the buttons and press AUTO.
---------- FOLLOW-UP ----------
QUESTION: Thank you, I have done that and the light disappeared for about 3 seconds and came back on. I tested again to see what would come up and now E.52 and E.55 disappeared but E.85 still shows up. What do I do next?? What does it mean??
THank you very much!
AnswerE85 means that the throttle body on the engine needs to be serviced.
If you look down inside the throttle body where the throttle valve is located you will see a blackish residue buildup on both sides of the throttle plate and surrounding area of the throttle body. This carbon residue needs to be cleaned OFF of the throttle plate and the surrounding area with a suitable spray cleaner.
Then you need to CLEAR (erase) the CODE E85 from the computer and perform a re-learn process for the computer.
