tomy_r

i recently just got done getting the axles in and everything in my 92 4dr civic. when i take up my car for a test drive, i am back firing around 25- 30mph. i just swapped a b18a1 in the civic, i hear a lot of backfirng in the low rpms. i am using my stock LX distributor and the same sparkplugs fromt the D15b7. am I running too rich or is my car not igniting right. aything can help thanks a lot yall.


tomy_r

T"u"Rtle

you need to get the correct spark plugs for your motor before you seriously harm your motor.

T"u"Rtle

also you need a B18 distributor also not a D series one and check your timing.

imskatencrzy

replace your plugs and wires for the b18's. should decrease it. if not, check ur timing.

tomy_r

eh yall i just put in the ls distributor and changed back the spark plugs and everything( wiring 1,2,3,4) and know my car idles really bad, 1000 rpms and 2000rpms uop and down. i am thinking that i have a leak somewhere? at first i had to take the manifold out so that i can put in the back tranny/motor mount in and took of the intake manifold. i tighten down everything and put it back. i had a leak at the the throttle body and replace it with a new one, no bad ideal. but after i swapped the dizzy to the b-series it is idling bad know, cant seem to find out what the problem is!!! help thanks for posting though!

tomy_r