jdm00civicex
Member
just got done swapping a b20vtec into my 2000 civic ex. got a 96 b20b block, 90 b16a head and a S1 cable tranny. everything thing is connected running obd2 setup including stock 2000 civic ex injectors with stock 2000 civic ex engine harness with a 99 p2t si ecu. fuel pressure guage reads 42psi idling at 1300rpms it does not want to go below 1300rpms if you mess with the idle screw the ecu shuts the engine off. got 2 error codes reading misfires. timing is set all the sensors are connected in the right places, all the vacuum lines are connected, no vacuum leaks at all. it back fires like a mother, sounds like a bomb. it also back fires out the intake sometimes. also using brand new spark plugs and brand new NGK spark plug wires with a brand new distributor, had to make a harness for the distributor since the plug on the distributor was fatter then the plug on the 2000 civic ex engine harness. some times the engine gets flooded with fuel and it takes a while to start up, and at those times it back fires alot out the exhaust and sometimes out the intake. been working to resolve this problem for about a week know and no luck. CAN SOMEONE PLEASE HELP ME OR GUIDE ME OR GIVE ME SOME ADVICE? Thank You