My 94 GSR stopped running a few weeks ago because of a bad main relay(I thought it was the fuel pump). For referance my car has hondata s300(basically a stock gsr tune with slight adjustments), headers, 2.5'' exhaust, skunk2 im, str tb, and an aem intake. I replaced the main relay with a new one from honda and the fuel pump with a walbro 255lph. The car since will start but won't idle or run well, seems to be missing, and is sending a lot of unburnt fuel through the exhaust. Ive tried everthing I can think of from adjusting fuel pressure to changing spark plugs, wires, distributor etc. I don't know what else to try, when the main relay goes bad does effect anyting else in the electrical system.
Thanks for any help.