Hi guys, I just pulled my plugs yesteday and they are quite fouled. A month ago they were nice and golden brown. I increased my fuel pressure for a two week span by 4 psi, but returned it before my recent track event to 40. I replaced the plugs last night, and cleaned up the cap and rotor, and the wires are showing almost no resistance on the meter. Also, the plugs were evenly black across all cylindars, so I doubt its a sticking injector. the motor is a 1ts gen b16a in a 1990 integra obd0. Oh, its got a PW0 ecu with the mugen program. (I know its a rich program but its run fine in the past) Any help would be great. Its still bogging today although its too early to read the plugs. timming? o2? no codes being thrown. Ryan

 

40psi on vac is till a little high. I think stock is something like 30-37psi on vac, and 40-47psi off vac.

 

i thought it was a bit higher than that but you might be right. Ive ordered a custom chip to replace the mugen program. Mild fuel and timing boost, with a higher VTEC point. It should be happier, oh also a new o2 just to cover things off. Thanks for the reply.