I am getting 14MPG with my 95 civic ex. I bought it with a d15b7 motor in it (suppose to have the d16z6) and it has the original ECU in it (p28). my 4 CEL's are. Oxygen sensor, MAP sensor (found out there isn't even one installed), vtec, and vtec oil switch. can these problems be causing such shitty mileage? also, if it is, which way is the cheapest way out to get my mileage back up without fixing it all at once? I already have the head and everything, just need a Vtec Solenoid. until then i cant get that installed, but i was wondering, if i get the map sensor, will that bring things up? thx

 

well the number one thing causing your bad gas mileage is your o2 sensor. thats how your car adjusts a/f ratios. Fix that and i guarantee that your mileage will go up.

 

well i heard if i fix my map sensor that will bring me upto 30 MPG easily

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bmw626 &raquo;</TD></TR><TR><TD CLASS="quote">well i heard if i fix my map sensor that will bring me upto 30 MPG easily</TD></TR></TABLE>

specially if you are running none

My advice would be run the B7 ECU and cut down 2 cels...

 

will replacing a old o2 sensor help out?
i dont know if it was replaced recently, or so
but i know im not getting good mileage,
would this help and how much do they run?

 

What mileage is that car/engine? supposed to get normally?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fast88std &raquo;</TD></TR><TR><TD CLASS="quote">My advice would be run the B7 ECU and cut down 2 cels...</TD></TR></TABLE>

I have a z6 head that i am getting ready to install soon that my friend gave to me, i have EVERYTHING i need minus a complete vtec solenoid