check engine
07-21-2014, 11:06 AM
#1
Instructor
Thread Starter
check engine
I have a 99 that is throwing a 410 pcm code i did the research on what it is . Supppose to be air pump for the initial cleaning of exhaust gases when starting up . which leads me to my question when i reset the code the litght doesnt come back unitll im driveing 30 or 40 mins why is that ?
07-21-2014, 11:15 AM
#2
Team Owner
There are certain parameters that must be met for the test to be done, although I thought with the AIR system it was done cold start at idle. Can you hear the pump run (behind driver's headlight) on cold start?
Last edited by vettenuts; 07-21-2014 at 11:17 AM.
07-21-2014, 04:18 PM
#4
Melting Slicks
You'll have to see if the AIR pump is turning on or not. If so monitor the 02 sensor data and watch for them to equally drop. Could be the pump, could be the check valves, could be a fuse, could be several things.
07-21-2014, 04:33 PM
#5
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
Pop the hose apart at the fitting by the alternator. With the engine COLD, Start the engine. The Pump should RUN for approx 60-90 seconds.
You should feel a hard stream of air from the end of the hose coming from the pump when the pump is running.
The PCM tells the pump to run during the fully warmed up to operating temp closed loop drive cycle to insure that the system is operational. If the PCM doesnt detect the correct O2 sensor voltage change during the AIR Test cycle, it throws the 0410 code.
BC
You should feel a hard stream of air from the end of the hose coming from the pump when the pump is running.
The PCM tells the pump to run during the fully warmed up to operating temp closed loop drive cycle to insure that the system is operational. If the PCM doesnt detect the correct O2 sensor voltage change during the AIR Test cycle, it throws the 0410 code.
BC
07-21-2014, 09:48 PM
#6
Drifting
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St. Jude Donor '14
Bill is correct, try his quick test first. Here is some more info that might help. P0410 is one of the easier codes to diagnos and repair..
P0410
CIRCUIT DESCRIPTION
A secondary Air Injection (AIR) pump is used on this vehicle in order to lower the tailpipe emissions during start-up. The powertrain control module (PCM) supplies a ground to the AIR pump relay, which energizes the AIR pump.
The PCM monitors the Heated Oxygen Sensor (HO2S) voltages in order to diagnose the AIR system.
During the AIR test, the PCM activates the AIR pump during closed loop operation. When the AIR is activated, the PCM monitors the HO2S voltages, and monitors the short-term fuel trim values for both banks of the engine. If the AIR system is operating correctly, the HO2S voltages should be low, and the short-term fuel trim should be high.
If the PCM determines that the HO2S voltages for both banks did not respond with the expected results during the tests, DTC P0410 sets. If only 1 sensor responded, the PCM sets either DTC P1415 or DTC P1416. The active DTC indicates which bank has the inoperative AIR system.
CONDITIONS FOR RUNNING THE DTC
DTC's P0101-P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0125, P0171- P0175, P0200, P0300, P0335, P0336, P0351- P0358, P0440, P0442, P0443, P0446, P0449, P1120, P1220, P1221, P1258, or P1441 are not set.
The fuel level is more than 12.5 percent but less than 87.5 percent .
The engine is running for more than 30 seconds .
The maximum air flow is 22 g/s .
The air fuel ratio is 13.125:1.
The engine load is less than 40 percent .
The ignition voltage is more than 11.7 volts .
Vehicle speed is more than 15 K/H (25 MPH) .
The engine is not operating in any of the following modes:
Power enrichment
Decel fuel cutoff mode
The catalyst over temperature
The engine is operating in a closed loop for more than 15 seconds .
The engine speed is more than 850 RPM .
The Engine Coolant Temperature (ECT) is between than -10°C to 110°C (14°F-230°F) .
The Intake Air Temperature (IAT) is between -10°C to 100°C (14°F-212°F) .
The fuel system is operating in fuel trim cells 1, 2, 4, 5, or 6.
CONDITIONS FOR SETTING THE DTC
If the AIR pump turns ON during a closed loop operation and the HO2S voltage does not fall below 222 mV for 1.3 seconds .
Or
If the AIR pump turns ON during a closed loop operation and the short-term fuel trim does not change more than a predetermined amount.
ACTION TAKEN WHEN THE DTC SETS
The MIL is turned ON.
A DTC is stored in memory.
The Freeze Frame/Failure Records are stored.
The Failure Records are updated after the first failure of each ignition cycle.
CONDITIONS FOR CLEARING THE MIL/DTC
The control module turns OFF the Malfunction Indicator Lamp (MIL) after the third consecutive trip the diagnostic has run and passed.
The history DTC will clear if the fault conditions have not been detected for 40 warm-up cycles.
A scan tool can be used to clear DTC information.
P0410
CIRCUIT DESCRIPTION
A secondary Air Injection (AIR) pump is used on this vehicle in order to lower the tailpipe emissions during start-up. The powertrain control module (PCM) supplies a ground to the AIR pump relay, which energizes the AIR pump.
The PCM monitors the Heated Oxygen Sensor (HO2S) voltages in order to diagnose the AIR system.
During the AIR test, the PCM activates the AIR pump during closed loop operation. When the AIR is activated, the PCM monitors the HO2S voltages, and monitors the short-term fuel trim values for both banks of the engine. If the AIR system is operating correctly, the HO2S voltages should be low, and the short-term fuel trim should be high.
If the PCM determines that the HO2S voltages for both banks did not respond with the expected results during the tests, DTC P0410 sets. If only 1 sensor responded, the PCM sets either DTC P1415 or DTC P1416. The active DTC indicates which bank has the inoperative AIR system.
CONDITIONS FOR RUNNING THE DTC
DTC's P0101-P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0125, P0171- P0175, P0200, P0300, P0335, P0336, P0351- P0358, P0440, P0442, P0443, P0446, P0449, P1120, P1220, P1221, P1258, or P1441 are not set.
The fuel level is more than 12.5 percent but less than 87.5 percent .
The engine is running for more than 30 seconds .
The maximum air flow is 22 g/s .
The air fuel ratio is 13.125:1.
The engine load is less than 40 percent .
The ignition voltage is more than 11.7 volts .
Vehicle speed is more than 15 K/H (25 MPH) .
The engine is not operating in any of the following modes:
Power enrichment
Decel fuel cutoff mode
The catalyst over temperature
The engine is operating in a closed loop for more than 15 seconds .
The engine speed is more than 850 RPM .
The Engine Coolant Temperature (ECT) is between than -10°C to 110°C (14°F-230°F) .
The Intake Air Temperature (IAT) is between -10°C to 100°C (14°F-212°F) .
The fuel system is operating in fuel trim cells 1, 2, 4, 5, or 6.
CONDITIONS FOR SETTING THE DTC
If the AIR pump turns ON during a closed loop operation and the HO2S voltage does not fall below 222 mV for 1.3 seconds .
Or
If the AIR pump turns ON during a closed loop operation and the short-term fuel trim does not change more than a predetermined amount.
ACTION TAKEN WHEN THE DTC SETS
The MIL is turned ON.
A DTC is stored in memory.
The Freeze Frame/Failure Records are stored.
The Failure Records are updated after the first failure of each ignition cycle.
CONDITIONS FOR CLEARING THE MIL/DTC
The control module turns OFF the Malfunction Indicator Lamp (MIL) after the third consecutive trip the diagnostic has run and passed.
The history DTC will clear if the fault conditions have not been detected for 40 warm-up cycles.
A scan tool can be used to clear DTC information.