Threw Code 433

[jediboytj]

Just randomly threw this code.

I was driving along, I hit the gas moderately to cross an intersection, and I notice my car isnt moving like it should, then my CEL comes on and my car is in limp mode. Luckily im 2 blocks away from my house. Thought I blew a vac line or hose.

Go home, check the code, reset it, and drove around the block a couple times, giving it a bit of gas, and it moved normally.

Where is the rear knock sensor anyway? Should I worry too much about it?

[Chilled man]

theres only two knock sensors and there both under the intake manifold

so :huh:

[AlvinL]

See if the codes comes back. Below should help you troubleshoot.

A2 - 143: front knock sensor

A2 - 433: rear knock sensor

Diagnostic trouble code (DTC) information 143, 433

Condition

If engine coolant temperature (ECT) exceeds +40 °C, engine speed (RPM) exceeds 2000 rpm, load exceeds 2.5 ms and the signal from knock sensor (KS) is missing, Diagnostic trouble code (DTC) is stored for the current knock sensor (KS).

Substitute value

B5234T/B5204T/B5234T5:

-knock control is disabled

-Only initial boost pressure permitted

-ignition advance reduced for safety reasons.

-Increase in the quantity of fuel injected to cool down the fuel/air mixture.

B5254S

-knock control is disabled

-ignition advance reduced for safety reasons.

Possible source

-incorrectly adjusted camshafts.

-Short-circuit to ground in signal cable

-Open-circuit in signal cable or ground lead

-Contact resistance in terminals

-defective knock sensor (KS).

Fault symptom

Deterioration in performance due to initial boost pressure and/or retarded ignition.