Question about 1993 Buick Skylark
Have changed ECM,fuel reulator,idle circut sensor,map,temp sensor x2 just to name a few?
Not sure if the 93 has a mass airflow sensor, i know it has a air charge temp sensor that can cause the issue you are describing.
Posted on Oct 26, 2012
Could be as simple as your battery issending low voltage to the ecm, causing false codes and a rich condition. check your battery before you chase anymore codes. Sounds funny but costs nothing and kept me from buying new cats and an alternator. If this fixes it your car will relearn the settings after a couple days.
Posted on Dec 22, 2012
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Posted on Jan 02, 2017
Hi, first thing, is your check engine light on? if it is, you can check the codes yourself, get a paper clip unfold it so you got 2 straight ends, find your dianostics port where you plug in the scanner, take the paper clip and stick one end into the one on the far right and the other to the one next to it and turn ignition key to on position, check engine should start blinking if not move the last end of paper clip you plug into the next one in port until it does( turning key off each time before you move paper clip end) do this procedure until the light starts to blink. When it blinks count the blinks, for example it will blink one time than a pause than blink twice quick which means 12 and so on. It will start out with a 12 which means the computer is ready to give stored codes. Just write down the codes and either take them to napa, or auto zone, or to a shop you know, and they can tell you what they mean. On a car that old it could be almost anything, parts wear out, but right now what stands out to me by your description i would check the cadalitic converter it might be plugged. Take some advise get someone that knows something about cars or at least works on them on a regulator bases. That way your not playing a gessing game.
Posted on Sep 24, 2010
195 IS THE ORIGINAL THEROSTAT THE ONLY THING A T-STAT DOES FOR YOU IS FOR HEAT IN THE WINTER THE HIGH THE TEMP THE BETTER THE HEAT IN THE CAR
Posted on Oct 16, 2010
Tips for a great answer:
If the value is not more than -20 percent, inspect for the following:
With the engine idling and the transmission in the Park or Neutral position, observe the manifold absolute pressure (MAP) sensor parameter. The MAP sensor parameter should be between 19-42 kPa.
If the MAP sensor parameter is not between 19-42 kPa, refer to DTC P0106 .
With the engine idling, observe the mass air flow (MAF) sensor parameter. The MAF sensor parameter should be within 2-6 g/s at idle.
Vacuum hoses for splits, kinks, and improper connections
The air intake duct for being collapsed or restricted
The air filter for being dirty or restricted
Objects blocking the throttle body
Excessive fuel in the crankcase due to leaking fuel injectors
The evaporative emissions control system for improper operation
Excessive fuel pressure
Malfunctioning fuel injectors
The HO2S for improper installation and for electrical wires or connectors that may have contacted the exhaust system
The HO2S signal circuit shorted to voltage
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