A problem just started with my car about two weeks ago.
I was driving and when my RPMs got upto 2500 the car felt like it was misfiring. Kinda like there was gunk in the fuel lines but it doesn't do it below 2500. Only 2500 and over and the higher the RPMs the worse the problem. When my check engine light came on I went upto the local autozone and had it tested. The tester said low compression in pistons 1 and 3.
I thought maybe the spark plugs were bad so I changed them. I also switched coils 1 & 2 and 3 & 4 to see if the check engine light might show pistons 2 and 4 had low compression. Well the problem conitnued exactly like it had before. Nothing new but this time the check engine light tester said everthing was good even though the check engine light is on. If anyone knows what is going on please help.