MR2 Spyder (1ZZFE) bad gas mileage
Hi! I'm getting bad gas mileage on my 2003 Mr2 spyder. I was getting 29-30 mpg and now only 23-24 mpg, I don't really feel a difference when I drive but the gas mileage has been worse lately.
I was thinking that maybe cleaning the throttle body and replacing the air filter could help, but I want to know what else I can look for. Thanks a lot!
How many miles on the car?
cleaning the throttle body and replacing the air filter
Check the tire pressure, spark plugs. Adding some fuel injector cleaners in the gas tank could help too.
I would also check your MAP sensor for proper operation. Sometimes, they can be removed and cleaned, sometimes they just need replacing. Also check all electrical connections to the sensor for corrosion.