Standard Ignition Ignition Knock (Detonation) Sensor P/N:KS437
Standard Motor Products
Standard Ignition KS157 sensor for the 1984-1988 Toyota Cressida 6-cylinder 2.8L, the 1989-1991 Cressida 6-cylinder 3.0L and other vehicles picks up engine knock vibration and sends a signal to the engine computer. The computer uses that signal to respond to detonation.
A failing knock (detonation) sensor can show up as a check engine light, engine ping under load or less power. A damaged wiring connector is another common cause, so these signs alone do not prove the sensor is the problem.
This is a direct-fit sensor for the 1986-1988 Toyota Supra 6-cylinder 3.0L. It also fits the 1984-1988 Toyota Cressida 6-cylinder 2.8L, the 1989-1991 Cressida 6-cylinder 3.0L and the 1985 Toyota Celica 6-cylinder 2.8L, and every one of them takes a single sensor.
Fit and size
Build and materials
One sensor. Mounting hardware is not included, so plan on new mounting bolts instead of reusing the old ones.
Interchange: S8706 · SU6699 · DKS574 · 8961530020
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This part cross-references / interchanges with the following part numbers:
Does the Standard Ignition KS157 sensor fit the 1984-1988 Toyota Cressida 6-cylinder 2.8L?
Yes. Standard Ignition KS157 fits the 1984-1988 Toyota Cressida 6-cylinder 2.8L, and the 1989-1991 Cressida 6-cylinder 3.0L takes it too.
Does the KS157 sensor come with a mounting bolt?
No. Mounting hardware is not included, so the box holds one sensor. Plan on a new bolt rather than reusing the old one.
Is the Standard Ignition KS157 sensor made of cast iron?
Yes. The Standard Ignition KS157 sensor is cast iron. It bolts on and connects through a plug-in connector with one male blade terminal.
What knock frequencies does this sensor respond to?
This sensor responds to knock frequencies up to 1000 Hz. That range lets it follow shifts in engine knock frequency across a broad range of vehicle conditions.
Is every KS157 sensor tested?
Yes. Every unit gets an accelerometer-based vibration test, and an automated data acquisition system monitors sensor output voltage at the specified frequency range during manufacturing.
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