Might be due to, colder weather, winter grade gas, dirty PCV valve, dirty EGR, dirty fuel injectors, low tire pressure, front and/or rear end needs to be aligned, dirty air filter, weak battery or weak alternator. If you replace or clean any of the above pieces make sure you disconnect the battery for at least 15 minutes so the ECU will recalibrate itself.

For more FAQ see the link in my sig.

-Ryan
2000 Amigo V6 HT AT 2wd
FAQ 98-04 Isuzu Rodeo, Rodeo Sport, Amigo, Trooper
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