PCM CODE PO410!!! DOES THIS EFFECT HORSEPOWER AND OR PERFORMANCE?????
P0410 is an emission related code. The secondary air injection (AIR) system is designed to lower emission levels after start up. The power train control module (PCM) commands the AIR pump to run for about 1 minute after the engine is started. The heated oxygen sensors (HO2S) and the Short Term Fuel Trim are monitored by the PCM for problems.
If the PCM detects the HO2S and Short Term FT did not respond as expected it sets the P0410 code.
Is the problem continuous or intermittent? Are P0412 or P0418 also set?
Fault analysis will require access to a scan tool. With a scan tool connected, commands can be sent to the various components of the AIR pump. Using the scan tool, a fault analysis checklist in the Service Manual can check the operation and electrical connections to the AIR pump and sensors.
Have any mosture, water, or debris been injested in the AIR pump? Have any hoses or vacuum hoses been pinched, kinked, heat damaged, or deteriorated? Are there any restrictions in the pump inlet, duct, or filter?
Can you hear any exhaust noise through the air cleaner? If so the AIR solenoid may be leaking vacuum and holding the shut-off valve open.
Is the AIR pump fuse open?
Do the electrical connectors look OK? A poor ground connection for will also cause this fault.
A scan tool and service manual most likely will be needed to isolate the problem if it isn't an obvious vacuum leak, etc.
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The P0410 secondary AIR system problem is suspicious just after the clutch repair. Perhaps the mechanic disconnected some HO2S wires for access during the repair and did not reconnect them. The timing of the problem seems suspicious. You might just check electrical connections on the HO2S under the car.
The error code indicates a problem with the emissions system and should be repaired. It appears your car is a 2003 and would most likely be under warranty, if so, the dealer should repair this for you.
My Service Manual for the 2001 car says that a P0410 indicates the following:
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A secondary air injection (AIR) pump is used in the vehicle 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 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.
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Based solely on my reading of the manual, I'd respond to your original question by agreeing that this should not hurt HP or performance (and that this is the ONLY DTC that has been set) since the AIR system is only used for emission control at engine start.
However, this problem may cause problems if your state (like mine) has a tough pollution control check system. The car MIGHT fail a pollution check.
If this problem appeared right after my dealer had done the work on the clutch, I'd insist they diagnose and fix this. It could be something related to the work they did, as something like a kinked AIR pump inlet hose can cause this DTC to set.
Good luck,
Steve





Sounds to me like there trying to feed you a line fo SH!&! Dealer should be right up front and say " we will bring it in for a diagnosis and rpair on XXX day!
Then he should have been able to tell you XXX was found bad and XXX was replaced!
Sounds like it could have been caused by a past service related repair and they are just trying to pass the buck!
Be more proactive in your problems and insist that they tell you what was found wrong and what they did to fix it.
If you ask the forum members for help, they will be able to arm you with knowledge and give you ammo to go in there and sort out the BS from the facts!!!
If I have a warrenty related problem, I get out my service manual and try to figure out what is wrong and how to fix it before I bring it to the dealer. That way, when they tell me that the RAMAFRAMASTAT is out of alignment, I can tell them to take a hike!
I hate when dealers try to take advantage of people! :mad
Good luck with your repair and I hope the dealer fixes it properly
BC









