Hi, hoping to get some help for an issue I'm having on my 2003 Protege5. Recently replaced water pump, timing belt, valve cover gasket and ever since its been idling really rough. It still drives really nicely, never hiccups or drives rough but whenever I am at a stoplight the idle is super rough. There is a Check engine code for a "Random Missfire" that keeps coming up. I just replaced the sparkplugs, coils and ignition wires but none of that has fixed the problem. The issues seem to get worse as the car warms up, when its cold it idles pretty smoothly, but then gets much worse as it warms up. Also as the idle gets rough the engine shakes as well
I'd love some thoughts on what it could be as I'm not really sure what to check next.
Thanks!
I'd love some thoughts on what it could be as I'm not really sure what to check next.
Thanks!
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