I have a 98 civic w/ an h22a swap and when i give it gas it bogs down and spits/sputters. Also backfires when i shift. Anyone have any ideas on whats doing this?

 

pooor timing, bad air/fuel ratio are two big reasons. could have fouled plugs at this point. needs a good timing and tune.

 

check your timing.
plugs,wires, and cap.

any cels?

 

Sounds like either the ignition timing or mechanical timing is off.

 

cel has been on since i got it but the guy said that he didnt connect all the wires so thats why is was on? How do i check my timing?? I've been stuck on the tranny and axles so long that i haven't even put thought into the motor

 

Pull the CEL codes. What are they?

Start by hooking up a timing gun, jumping the service connector, and checking what mark on the crank pulley aligns with the pointer. On Civics, the correct mark is the red one that is in the middle of a group of three.

 

im with ron....
whats the codes?

 

how do u pull the cel codes?

 

green plug under the dash over by the ECU. loop it with a paperclip and count the CEL as it flasses on the dash with the cars ignition turned on in the power position. that is if its an OBD1 ECU

 

^^ just needed to add, a long flash is 10 and a short flash is 1.

 

thanks dude. i thought about that afterwards but was too lazy to edit

 

ok thanks everyone. any other input??

 

wow so it was bad gas that caused that. If you live in evansville dont go to speedway gas station on the lloyd by USI