1995 Chevy Blazer 4x4, I did the Smog a few days ago, it passed easily. Now the engine light is on and the engine shakes at idle. I think it's the spark plugs, I don't want to invest money. A very clean and nice classic car, New Michellin tires. Many new engine parts, only for enthusiasts. Original mileage, I have DMV certification. I accept offers and trades. Smog certificate and clean California title in hand. show contact info . 1995 Chevy Blazer 4x4. Ran the smog test a few days ago, it passed easily and it ran perfectly. Today the check engine light is on and the engine is shaking at low speed. I think it's the spark plugs. I don't want to spend any money. The car is very nice and clean. Lots of new engine parts, a Vortec V6. New Michellin tires. Original miles, DMV certification. For those who know. I accept offers or trades. Smog certificate and California clean title on hand. show contact info .