I have a 92 Si Hatch with an h22a4 swapped into it right now its throwing a troubled code 43, which is Fuel Supply System, is that my fuel pump? injectors? or what? what do I need to fix? it sputters an shuts of alot an when the code is on VTEC doesn't engage, its also throw a Map Sensor code to

 

oh yeah and it has an exhaust leak near th header, it has a minor hole in it

 

a Code 43 also means a possible h02 sensor problem. Most people replace that then the code 43 goes away. The only problem is that part is $$$ from the dealership.

James

 

go to autozone and get a bosch universal o2 sensor. its like 70 bucks at most. i did this and it helped my issue with code 43