2003 ford focus it started spitting an sputtering about a week ago i have a APC intake which I just changed the air filter 2 weeks ago you think its the mass air flow sensor which is causing this?
look at your vaccum hoses 4 leaks.
What makes a 2001 Chevy Monte Carlo ls just all of the sudden start spitting and sputtering until you get over a certain rpm and the check engine light comes on?
My 2004 Yamaha 1100 vstar just suddenly started spitting and sputtering the bike has 20000km on it it always worked great until today can anybody give me any ideas thank you?
could be a number of different things, first i would take it to autozone to check the ECU for errors, if it is throwing more than one error ex"multipule cylinder misfire, lean burn, cylinder 1, 2, 4 misfire" check your MAS (mass airflow sensor), igination coils, or sparkplugs. your best bet sense these cars have SO MANY SENSORS, take it to VW.