HELP - Cylinder 2 misfiring
06-11-2004, 12:26 AM
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HELP - Cylinder 2 misfiring I got an OBD2 reader and got codes, 106, 102, 302, and 106. 302 is the misfire on cylinder 2. 102 said a possible problem with the MAF or VAF Circuit Low Input. Not sure why, but 106 shows up twice on the reader.
So, I started with the MAF. Put the stock one back in. Ran a test and code 102 disappeard. I then checked all the vacuum hoses I could see and could not find any leaks, made sure the throttle body was tight and was not leaking, and went as far as replacing the MAP sensor. I was still getting codes 106, 302, 106. I deleted the codes using the reader and then started the car again. Now it was only reading code 106, but you could tell it was still misfiring. I thought maybe the spark plug or ignition could be causing a problem with cylinder 2. I swapped spark plugs between cylinders 2 and 3 and also swapped the coil. Started it up, but it still was only showing code 106. Now I started spraying carb cleaner along the intake manifold but could not find any leaks. I shut it off and start it several times but still only showing code 106. I then drove it around the block. Now it's back to throwing codes 106, 102, 302, 106. Both spark plugs seemed to be pretty dirty. It's can't be a plug problem though because it still shows cylinder 2 as misfiring. You can definitely smell gas whell it is running. It's almost like it is either running rich or gas is coming out somewhere. What the heck is wrong?
So, I started with the MAF. Put the stock one back in. Ran a test and code 102 disappeard. I then checked all the vacuum hoses I could see and could not find any leaks, made sure the throttle body was tight and was not leaking, and went as far as replacing the MAP sensor. I was still getting codes 106, 302, 106. I deleted the codes using the reader and then started the car again. Now it was only reading code 106, but you could tell it was still misfiring. I thought maybe the spark plug or ignition could be causing a problem with cylinder 2. I swapped spark plugs between cylinders 2 and 3 and also swapped the coil. Started it up, but it still was only showing code 106. Now I started spraying carb cleaner along the intake manifold but could not find any leaks. I shut it off and start it several times but still only showing code 106. I then drove it around the block. Now it's back to throwing codes 106, 102, 302, 106. Both spark plugs seemed to be pretty dirty. It's can't be a plug problem though because it still shows cylinder 2 as misfiring. You can definitely smell gas whell it is running. It's almost like it is either running rich or gas is coming out somewhere. What the heck is wrong?
