QuestionQUESTION: My 84 seville is shooting black smoke out of the tail pipe and i am not quite sure why. The gas milage is terrible a 1/4 of a tank maybe gets me 5 miles.
ANSWER: When the engine is off and the ignition is ON and the engine NOT running remove the air cleaner assembly and see if any of the 2 fuel injectors is dripping gas into the engine.
Has or IS the CHECK ENGINE light illuminated on the dash ?. If so obtain the codes from the computer via the climate control panel by this method:
1. Ignition ON.
2. Simultaneously push and hold the OFF and WARMER buttons for 2 seconds and release them.
3. Letters and numbers should start to appaer such as E15 or E44 or any other combunation.
4. write down what displays on the panel EXACTLY as if you were video taping the display and let me know what they are.
5. The display will stop displaying and will show .7.0.
6. Turn the ignition OFF.
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QUESTION: the injectors are not leaking. the engine light dose not come on and never has. It only has 59,000 miles. i don't know if this matters but the hose that runs out the back of the air filter case is all beat up and torn.
ANSWER: Perform this easy test anyway.
1. . Ignition ON.
2. Simultaneously push and hold the OFF and WARMER buttons for 2 seconds and release them.
3. Letters and numbers should start to appaer such as E15 or E44 or any other combunation.
4. write down what displays on the panel EXACTLY as if you were video taping the display and let me know what they are.
5. The display will stop displaying and will show .7.0.
6. Turn the ignition OFF.
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QUESTION: No letters came just all numbers in this order (.8.8, 13, 34,52, .8.8, 13, 34, 52, .8.8, 34, .8.8, .7.0).
ANSWER: OK, Let's CLEAR all the codes from the computer and see which codes return.
Re-enter into diagnostics as explained above. When you get to the .7.0, Push and hold the OFF and HI buttons on your climate control panel until you see .0.0 and release the buttons.
Wait 30 seconds and restsrt the car and re-enetr diagnostics and see if any of the codes return and let me know what they are.
13 = oxygen sensor not ready.
34 = MAP sensor signal to high.
52 = battery was disconnected.
.8.8 is not a code it is just a portion of the computer to enter into a different sequence.
I would replace the MAP sensor and the oxygen sensor.
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QUESTION: 34 is the only one still showing up.
AnswerYour ABSOLUTELY POSITIVE it is an 84 ?.
You need to replace the oxygen sensor and the MAP sensor. E-mail me at: onlineautohelp@msn.com and I will e-mail you pictures of where they are located.
After you replace these 2 items, You MUST clear the codes from the computer via:
1. re-enter into diagnostics and after the codes display you will see .7.0
2. Simultaneously push and hold the OFF and HI buttons until you see .0.0 and then release the buttons.
3. Check the spark plugs and clean if necessary.
4. Drive the car or start it and let it run for 5 minutes and then re-enter into diagnostics and see if you have any codes.
