I purchased a 92 civic and replaced the fuel pump to get it running. It ran just a little rough. So I took the distributor cap off and cleaned the points within it and the "blade" of the rotor and put it back together. After that, no start. So I replaced the cap and rotor. Still no start. Cranks and cranks but won't hit. Its getting fuel, and spark, though the spark may be a bit weak. Any suggestions of what this could be? Thanks!