Help!!

Check engine light is on. I checked the codes via reset options and fuel button 4 times. The only code is PC410H. Any ideas would be appreciated. Thanks.

 

the H at the end means it's not current (history) so i wouldn't worry about it... however a P0410 (i'm assuming you meant 0 instead of c) is nothing big here is what i pulled up on ALLDATA I would get someone with a scanner to read the code if you can (i'm new to vettes but i don't think the DIC reads EVERYTHIGN...)

P0410
Notes

CIRCUIT DESCRIPTION
A secondary air injection (AIR) pump is used on this vehicle in order to lower the tail pipe 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


DTCs P0101-P0103, P0107, P0108, P0112, P0113, P0116, 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 km/h (25 mph ).
The engine is not operating in any of the following modes:
Power enrichment
Decel fuel cut-off 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 control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records.
CONDITIONS FOR CLEARING THE MIL/DTC


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.
Clear the MIL and the DTC with a scan tool.

 

that code is not listed on my code list. The closest I see is...
P0410 AIR System
Your 'H' is history of course. I don't see anything with a PC prefix.

 

I'll double check the code tomorrow. I may well be PO. Thanks.

 

Your are correct. My mistake the code is a PO410H. I have tried pulling the 16 and 23 fuses procedure but the check engine light persists.

 

Thanks again to everyone that responded. One of the guys in this area that has done some mechanical work for me in the past walked me through the clearing process. Code and Check Engine are now no longer indicated. I believe I was not holding the reset button long enough or tried to reset at an improper point. Certainly was a relief to find such a simple fix.