Actually one can add a couple things to the required list: compression and timing (both cam and ignition). My short list reads fuel, spark, compression, timing.

The real bad thing about throwing parts is the accumulated problems created. Throwing a fuel dist at the mess now creats the possible issue of a misadjusted base setting.

The real issue is that all these problems are simple when one has the proper tools for diagnosis. One can not begin to properly diagnose KE injection without a fuel gauge and an ammeter.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician