Yes it is just like the title says. I have an obd2 b18b1 with intake and exhaust and a b16 tranny in my '94 civic. It has an obd1 p75 ecu and dizzy. I am only getting approx. 17mpg, any body have any ideas on what I can check to get proper gas mileage. I did change my spark plugs.

 

are you mainly driving on the highway with that short geared b16tranny?

 

99% of the times I do city driving.

 

clean o2 sensors maybe? idk.
but your transmission is close-gear ratioed so u will eat more gas that way too

 

I know the tranny has something to do with it, but 17 mpg sounds a little steep.