I have a 2001 Isuzu Rodeo with 125,000 miles on it, if the car has been sitting for more than 4 or hours, I go to start it and it runs rough and stalls out. It will do this 3 or 4 times until it runs okay. If I rev on the gas, it will back fire but help speed up the process. I have replaced the mass air flow sensor, all new spark plugs, cleaned the ERG line, replaced the air filter and the fuel filter. I also put High octane gas in it! Please help I want my car fixed.
Ashleigh