A few weeks ago someone backed into my car and messed up my Tanabe mufflers. They were bad enough to have to get rid of.

Anyway the body is fixed but I decided that I'm poor and couldn't afford a new Tanabe so I just bought pipes and run them from the Resonators to a tip. No mufflers.

After that I replaced the diz cap and rotor (Waiting on VCG, plugs and wires)


It seems my fuel econ went down? Possible? I put my Enkei rims back on (17x8 and chrome with 95% tread on Toyo Proxes tires, and I know they weigh more than stock rims, but not much.


Also, are the stock plug wires 5MM. I just won a new set of Autolite plug wires last week from Ebay and they say 7MM.


Is there a night and day difference between oiled and fouled out plugs and leaky VCG after I put new NGK's in (coming soon) as pertaining to fuel economy?

 

No one knows?

 

I've read this a few times...someone replaces their cap, rotors, and wires and inexplicably their gas mileage plummets. I recently did the same, but my mileage didn't get worse...it just stayed sucky like it had already been 320 miles to a full 20gal tank of gas.

 

I haven't replaced the plugs and wires.

The only thing I can think of is that the cap doesn't have as thick of spark posts as the Toyota one. That shouldn't be though

 

when I replaced my plugs/wires/rotors/caps on my 400, mileage went up, I don't have too much personal experience with the 2jz so I can't really speak about it :|