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I was looking for the ignition coil plug pin designation, it has a 4 pin plug on it
1999 LEXUS SC 400
Toyota ignition coil #90919-2228
have the same problem?
Tuesday, September 11th, 2012 AT 10:30 AM
Terminals 1 and 4 are grounds. The other 2 go back to the pcm.
I have attached the wiring diagram with ignition coils.
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Tuesday, September 11th, 2012 AT 11:56 PM
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