need help with these codes
08-28-2004 | 06:38 PM
#1
Thread Starter
Joined: Jun 2004
Posts: 3,148
Likes: 0
From: Chicago
need help with these codes P0327 Knock Sensor 1 Circuit Low Input (Bank1)
P0332 Knock Sensor 2 Circuit Low Input
what could be causing this
P0332 Knock Sensor 2 Circuit Low Input
what could be causing this
Last edited by Moparnos; 08-28-2004 at 06:45 PM.
08-28-2004 | 07:22 PM
#2
TECH Addict
iTrader: (6)
Joined: Dec 2001
Posts: 2,028
Likes: 0
From: sojourning....looking for my city whose builder and maker is God.
P0327 or P0332
CIRCUIT DESCRIPTION
The Knock Sensor (KS) produce an AC signal during all engine operating conditions. The Powertrain Control Module (PCM) calculates the average voltage range of each KS signal. If the KS system is operating normally, the PCM should monitor the KS voltage varying above and below calculated average voltage. If the PCM detects a KS 1 signal or a KS 2 signal voltage within the calculated average voltage range, a DTC will be set. DTC P0327 refers to the front knock sensor. DTC P0332 refers to the rear knock sensor.
CONDITIONS FOR RUNNING THE DTC
The PCM determines that this frequency is less than the expected amount for more than 9 seconds.
ACTION TAKEN WHEN THE DTC SETS
Check the knock sensor for proper installation. A knock sensor that is loose or over torqued may cause the DTC to set.
If DTCs P0327 and P0332 are set at the same time, inspect for poor connections at the KS harness jumper, located at the rear of the intake manifold.
CIRCUIT DESCRIPTION
The Knock Sensor (KS) produce an AC signal during all engine operating conditions. The Powertrain Control Module (PCM) calculates the average voltage range of each KS signal. If the KS system is operating normally, the PCM should monitor the KS voltage varying above and below calculated average voltage. If the PCM detects a KS 1 signal or a KS 2 signal voltage within the calculated average voltage range, a DTC will be set. DTC P0327 refers to the front knock sensor. DTC P0332 refers to the rear knock sensor.
CONDITIONS FOR RUNNING THE DTC
- DTCs P0117, P0118, P0121, P0122, P0123, P0125, P1114, P1115, P1121, and P1122 are not set.
- The engine speed is between 1,650-3,000 RPM.
- The MAP is less than 49 kPa.
- The Engine Coolant Temperature (ECT) is more than 60°C (140°F).
- The throttle angle is more than 0 percent .
- The engine run time is more than 10 seconds .
- Ignition voltage is more than 10 volts .
The PCM determines that this frequency is less than the expected amount for more than 9 seconds.
ACTION TAKEN WHEN THE DTC SETS
- The control module illuminates the Malfunction Indicator Lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.
- The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.
- The control module turns OFF the Malfunction Indicator Lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
- A current DTC "Last Test Failed" clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
- Use a scan tool in order to clear the MIL and the DTC.
Check the knock sensor for proper installation. A knock sensor that is loose or over torqued may cause the DTC to set.
If DTCs P0327 and P0332 are set at the same time, inspect for poor connections at the KS harness jumper, located at the rear of the intake manifold.