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How does the anti-knock-system work? 700 1988

posted by  john sargent on  Thu Feb 27 09:29 CST 2003
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last visit: Wed Oct 22 09:07 CST 2014
[RELATED]

"I would have thought that the ECU would retard the timing for the
knocking cylinder a bit, and then gradually advance untill "correct"
timing was reached or knocking was again detected - but maybe I'm wrong?"

The ECU (Engine Control Unit) controls the engine while the EZ-K controls the ignition. Yes, the EZ-K functions just as you have described. Timing is retarded in large increments (2.8º on the B230FT), and advances the timing in smal increments (0.35º on the B230FT) when knock is no longer detected. You have one knock sensor for each bank of cylinders.

Nice car. I'll bet it runs smoooth.






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