just had oil changed and I know I need to get a tune up - could it be spark plugs/fuel/fuel filter/sensors?
Mercury Q&AAsk Your Question
1991 Mercury Topaz Question: check engine light on - what could it be?
Answer #1PARTS GUY June 06, 2012, 20:44Master
What are the trouble codes?
Replyrockstar2, June 08, 2012, 02:39Rookie
Unfortunately there are none-just the light. BTW - sorry for not responding as quick as you did! I am thinking it just needs a tune up - I got this car from my grandmother and I don't know the last time it had a tune up.