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P0661 code mazda rx8 - Mazda Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: mazda rx8 fault code p0410

The P0410 code refers to the (secondary air system) emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.
About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.

A code P0410 may mean that one or more of the following has happened:

  • Water may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump
  • Blown AIR pump fuse due to freezing up
Possible solution:
This may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!
  • Replace the AIR pump AND one-way check valve
  • Test and clean the AIR pump AND test and replace the one-way air check valve
  • Replace the AIR pump inlet hose
  • Replace the AIR pump fuse (found under the hood)
It is really only an emissions issue and won't harm your car's engine ot drivetrain. It will however mean you won't pass emission testing if you live somewhere that tests for that like I do!

Posted on Jun 03, 2009

  • 7353 Answers

SOURCE: My 2004 Mazda Rx8 check

P0661 is an SSV Solenoid problem. P2259 is an A.I.R. solenoid problem. they both have power coming from the Main Relay. its complicated but make sure the fuses are good EGI Comp 1 and the AIR PUMP other than that the dealer will need to check it.

Posted on Sep 08, 2011

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