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  1. Spider - 105 & 115 Series (1966-1994)
    I recently failed smog and have been reading a bunch of old threads from other CA alfa owners. THREAD 93 Spider Failed California Smog HC this thread from 2009 talks about making sure your plugs, O2, and cat are good. I replaced the o2 and replaced the plugs in Feb ’20. @Andrew and...
  2. Engine Repair, Diagnostics & Rebuilding
    Hi, Just pulled all my spark plugs as the engine idle was rough and cylinder 2 spark plug is all black. I will be testing the injectors. Does anyone know the resistance I should be getting on my multimeter and compression by cylinder? I'm hoping it's not compression - That could be anything...
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