My engine check light came on when I was leaving work. Stopped at Auto Zone and had the guy do a test he put the tester on then asked about my gas cap but it is a screw on then he said that it's a leak somewhere.
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You can buy a spark tester at Auto Zone for little money. Put it in between the spark plug and the plug wire. Then have someone turn the engine over and watch to see of there is a spark in the tester. You can do this test for every plug.
If none of the plugs spark, then the problem is no spark and it could be coils or other. Rent a code checker, Auto Zone rents it for free, you only have to leave the cost for a deposit, but get it back when you return it. This should tell you the possible problems.
If some plugs spark and some don't, the plugs may need to be replaced. They should be replaced every 100,000 miles.
erase code again , then disconnect battery for a few minutes, reconnect, see if code comes back. hopefully this resets computer. you don\'t have a reset button on steering wheel do you ? replace your fuel filter, if you haven\'t lately. maybe that will help.
If you electrical system is OK,
You will have to pinpoint what the engine is missing... - Spark - Fuel - Compression
All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the engine to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should.
Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition. Be extremely careful when doing these tests.
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It means that the number 2 cylinder (passenger front of the engine) is not working. Whether its spark, fuel, or mechanical. The first thing you can check is if there is spark to the cylinder. With the engine running remove the spark plug wire from the number 2 spark plug. Listen or look for spark out of the plug wire. If there isn't than you can check for spark out of the coil pack. Do this with a test light or spark tester. With the engine off remove the number 2 spark plug wire from the coil pack. With the spark tester installed or the test light hooked to ground and placed on the #2 coil post have some body crank the engine over. If ther4e is no spark that you might have a bad coil pack. If there is spark than possibly the plug wire is bad.
You should not drive it with a misfire as you could ruin the catalytic converter which is very expensive to replace.
when the check engine light comes on its your cars way of telling you its found a fault the check engine light will stay on until the problem is fixed then it will go off it could be a simple problem you can have your check engine light tested for free its called a ob2 tester advanced auto,auto zone, napa they will plug into the harness and pull the code your car is throwing tell you why and what it is all for free good luck
i suggest that you drive it to an auto parts store that checks your charging system for free, advanced auto auto zone etc.etc.,there testers give the most acurate readings .as you turn on a/c light the voltage will drop from 14 from my limited knowledge on electical i think at an idle its okay as long as the voltage stays above 9.6 while under load for 15 seconds .but those guys there know the right stuff
If the tail lights and the dash lights stopped working and the tail light and the panel lighting fuses are both o.k. and you can find no other blown fuses then the problem is most likely the headlight switch.