I have a 93 camry 2.2 4cyl its CEL came on & ran rough , changed oil covered plugs , drove cel went out & then cam back on , new , valve cover,pcv , knock sensor cel on rough running ? what to do .
May have to do with the EGR Valve, may be bad. The system should be taken apart and cleaned from the carbon build-up, I believe there is a tube connected to the EGR that gets plugged up.
Ok that makes sense will try & get back to you THANKS
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