OK. Now my next obvious question. Does anyone know the difference between these 2 engine codes? I thought all 93's had E7's, why would some need a longer spark plug? Was there a mid year change in plug recommendation to cure some sort of problem? Was one engine code destined for a certain area (i.e. Canada, California, etc.)
What I dont know never ceases to amaze me!
andy
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88 coupe
91 LX NMRA Pure Street 5120
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