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Discussion Starter · #1 ·
greetings
i've got a 1999 4cyl 2wd with 200k that i've been having issues with. i've got new plugs and wires, i've cleaned the mass airflow sensor and i've run 93 octane fuel with seafoam fuel injector cleaner. i'm still having trouble with a rough idle at startup for maybe 30 seconds. one cylinder is definitely missing. i have boggy acceleration up to maybe 2000rpm and slightly rough cruising although i can get up to highway speed no problem. i pulled all the plugs to see if there was anything odd and all the plugs were light grey except for one that was slightly rust colored. i'm going to check for vacuum leaks this evening but after that i'm at a loss. i think i've looked at all the cheap and easy possibilities. what's the next thing i should look for? thanks.
 
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