A while back my car was heavily flooded, after fixing it, I got new spark plugs, a new clutch, and now some 17 inch rims and tires.
Lately, I have been noticing that I am getting really poor gas mileage. I have to put in like about 5 dollars a day and thats because the fuel light keeps coming on. From 5 dollars, I get about 2.7 gallons of 87 octane, and that lasts me only about a little less than 20 miles.
The car drives good still, but I was wondering if something could be blown, like a seal or if one of the rotors are bad. My friends also said it could be a result, of a bad o2 sensor, an exhaust leak, or a bad fuel filter. I also performed a search and thats what came up. I was just trying to make sure that the motor itself is not bad.

 

I would say a clogged fuel filter, and I hope your N/A for using 87 octane. Other wise, I only get about avg 10 mpg in city.

 

grab yourself a new O2 sensor as well

 

You will know when you motor goes bad you will feel your car's obvious lose in power and also hear the engine dieing its a very obvious noise when a rotor goes LIKE MINE !!

 

If you need a how to on fuel filter changing go to www.1300cc.com very good site I forget his username, but is very easy to follow.

You can order your fuel filter from mazdaformance.com and GET A ZOOM-ZOOM STICKER !! lol

 

REally bad milage from normal RX7 milage.....might very well be a bad LEAD/COIL/IGNITOR. While at idle, slowly, and I mean slowly and carefully, pull either LEAD plug wire out of its coil hole. Just enough to see the end of the wire. There should be a lotta sparking a gonin on there. No spark a goin on means a probably dead coil/ignitor. Do this after the car is fully warmed up and maybe driven for a few miles.

Don't bother looking at the TRAIL wires and coils. Waste of time, especially if your tach is working and both wires are going where they should.