well i have a 89 civic hatch, with a d15b jdm vtec crate engine swap in it.

sometimes when i start it it will turn over but not start, and if i wait a minute and do it a couple times then it starts. it keeps doing this off and on and its getting worse. im thinking maybe it could be a fuel filter? any help would help alot

im not throwing any CELs

also my car is burning alot of fuel im getting like 15mpg but my car still is running really strong like a brand new engine when im driving it. just burns way too much fuel and i can smell it

 

O2 sensor. sounds like you just need a good tune up dude.

 

sounds like tune up needed

 

Other things come to mind for the starting issue (assuming that you have done a basic tune-up already)- the ignitor in the distributor failing, battery going bad, poor grounds, or the main relay staring to fail.

 

bad starter could cause that also

 

even though its a crate

 

it turns over just fine. just acts like it doesnt get fuel sometime and ive tried it with a jumper cables hooked up. so im assuming its not my battery or starter

 

check ur fuel pump. u might need a new filter. check it out

 

When this happens on our cars, i would say 95% of the time its the main relay. i've dealt with this problem to many times to count. search main relay and you will get good info and detailed insuctions on how to check it.

 

 

it ended up being i needed a new fuel filter