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Re: 90 Civic Code 4
Posted to Technical Discussion Forum on 1/2/2001 2 Replies

Hi Daryle,

As you already know, code 4 is the TDC sensor. Have you taken a good look inside the distributor? Any rust? (Common)

You mentioned the waveforms look good. Here are a couple of known good waveforms:

1991 Honda Civic, CKP Sensor, CMP Sensor Wav... Login to read more.

Files Referenced:

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