i have a 95 civic 2dr 1.5 DX. i had sparkplug 1 blow from the manifold and i had it rethreaded, well since then i had the timing readjusted to honda specs, and teh plugs and wires are all new. asl well as all the distributer parts. why when i hit all the high RPM's does the car sputter like im running out of gas? i have to ease off the gas for it to act normal. what could go wrong, i use chevron 93 octaine gas and gas filter is new. could this be my cat converter?

 

aren't spark plugs in the head? not the manifold? is ur car stock?

 

yea there in the right place, and yes the car is all stock.

 

you had a sparkplug blow out of the engine? like it ripped the threads out? i wouldn't be running my engine hard if it did something of that sort.

to actually help you out though, make sure your fuel pressure is within specs (~35psi). you could double check your timing as well, i watch people get screwed by stupid service people all the time. also, you're wasting your money by running 93 octane on a stock engine. you can run regualr old 87 octane and you won't feel a difference (except in your wallet).

 

yea i had the preasure checked along w/ the timing all the same time. and luckly to my surprise, the person i have checking it works at the dealership i got it from. though it is under the table. he is still a mechanic ASE cert. could it be the CAT converter?

 

what do you mean by this?

 

well it was not screwed in tight enough and shook loose, and the last 2 threats were stripped out when the pressure built up