okay heres the deal. i just recently bought a 93 civic hatch DX with a b20 swap.

im getting terrible gas mileage, im running on maybe 10 miles to the gallon. heres what i think it is.

i have a P75 ECU which i think has a fried chip. my MAP sensor isnt plugged in cause it makes my idle goes insane, so i have it all plugged in directly to my intake manifold, or somehting like that, ill take a look at it again.

when i gun the car, or rev it, it smells like straight up gasoline, like, more than how a V8 smells with race fuel.

any solutions, idea, inputs on how i can get that fixed??

itd be greatly appreciated, thanks.

 

uh............ you unplugged the map sensor? .......and what? what did you do?

 

plug that map sensor back in..check for vacume leaks for the rough idle..theirs where i would start..i remeber wen i did my b16 swap i didnt have a map sensor and my idle was high...and it smelled like fuel alll the time and my mpg was really shitty too

 

thanks for the input, im gonna try plugging in my map sensor this weekend, i have it unplugged mainly cause when it revs, the muffler is sitting on zip ties, so it rattles all in the back, sounds like ****. im getting a stock one this weekend at the junkyard (i heard only hatch exhaust bolts right in, so i cant use the coupe or 4 door.. true or false???)


checking for vac leaks as well when i plug it in, dads truck had the same problem, so i think i know what im looking for.

ill let you guys know my progress, thanks!


B.T.W i just recently got in to tuning and working on cars, so i might be asking a few questions here and there. sorry if i become a nuisance.

 

i hope u get ur honda all fixed up! and for zip ties holding ur muffler..lol...clothes hooks work better..plastic tights could melt..hahhaha..well g/l!

 

yea some one told me to get hangers, but id rather just let it melt, lmao im going to the junk yard saturday, hopefully i can find a nice fitting exhaust