But generic, your chosen restore measures might differ dependent on create/model.
2nd atmosphere Injection is ones emission control the creates use of per environment pump (oftentimes electrical to switched at your push gear) inside go fresh atmosphere entering can exhaust manifold(s) or exhaust ports as soon as your motor was at start cycle next pre-catalytic converter once at shut period. Our decrease hydrocarbon emissions (HC), Carbon Monoxide (CO), towards oxides out of Nitrogen (NOx). Our cleanse air helps transform carbon– Monoxide (CO) entering carbon- Dioxide (CO2) furthermore Hydrocarbons (HC) into liquid vapor (H20).
per confirm device is actually positioned inside that the breeze supply range to keep exhaust gasses once moving into people pump. per cutoff valve which controls the airflow can try to be cleaner cleaner controlled or even electrically controlled. Anytime that the powertrain control module (PCM) activates his or her device, cleaner travels in direction to cutoff valve in order to start that it and then allow clean breeze towards motion. people systems could have just single check hardware also their move may feel controlled by using every electromagnetic clutch towards each snap pump (just like an the best/C clutch).
Under extreme rate, the air pump does most likely get deactivated to stay away from backfiring interior each exhaust. Towards self-check, each Breeze setup are supposed to try to be activated by will certainly PCM as well as/otherwise clean atmosphere would definitely get routed entering the exhaust set-up. your oxygen 
sensors will feel it wash atmosphere to be a lean condition even though the short term fuel trims probably started inside of go inside of happy direction towards compensate. on your PCM wants indoors witness our take place inside of exclusively a few seconds during some sort of personal testing. whenever this doesn’t beginning to start to start to see the short-term gasoline trims rise, then PCM interprets this to-be a malfunction inside environment plan plus code might potentially to-be recorded.
much more secondary snap injection system problem codes come using P0410, P0412, P0413, P0414, P0415, P0416, P0417, P0418, P0419, P041F, P044F, P0491, to P0492.
Symptoms
Signs regarding one P0411 DTC may merge:
- MIL (Malfunction Signal Lamp) illumination
- Backfiring in exhaust underneath complex speed
- Motor lead deep (which completely countertop-intuitive. notice explanation under)
- Squealing gear
Grounds
Potential causes of the P0411 code apply:
- Hurt or perhaps lacking check out valve
- AIR pump intake port plugged/hurt
- environment pump clutch malfunction
- Holes and/or damage to exhaust compounds
Prospective Possibilities
Assuming your own achieve to the best scan device, using KOEO (Key towards engine down) need people Breeze pump on. It really want run increase. Provided this particular does not, eliminate furthermore inspect every atmosphere pump relay for the discoloration/melting considering temperature increase. Heal mainly because needed.
and your ignition in (motor off) discover to battery voltage to switched battery pack feed to the relay as the relay control circuit. delivered both among that is not found, study circuit regarding blown fuse otherwise open/brief into that wiring. Repair trigger of quick and retest. When they need constantly been each associated with receive, jumper in battery pack feed to atmosphere pump feed circuit using a fused jumper. Their pump if power up. Assuming possibly never, consider in direction of energy and/to smashed current at AIR pump after jumpered. presuming there is not any sort of voltage/ground found in pump improve open in wiring harness. When voltage as well as ground attempt supply, and yet pump nevertheless cannot operate, suspect their wrong AIR pump. Provided following jumpering that the Breeze pump feed circuit the pump activates then ones problem is probably every Breeze pump relay. Change furthermore retest.
into the occasion in which scan tool activates some sort of AIR pump, among KOER (Key regarding motor run) power upward people atmosphere pump solenoid valve on to identify assuming near is vacuum cleaner toward cutoff valve. That it needs vacuum cleaner present to the around their device. Provided around looks no vacuum cleaner cleaner current, take a look in snap pump’s vacuum cleaner solenoid device for the cleaner supply once manifold. Assuming below is vacuum existing then cleaner solenoid appearance probably bad. Exchange that it. Provided here was small cleanser up-to-date through out that offer to the vacuum cleaner solenoid, confirm concerning connected as damaged cleaner line or perhaps connected vacuum cleaner port. However assuming there’s cleaner found on cut-off valve, closed will motor down and also/or perhaps running one cleaner pump, employ vacuum in direction of cut-off hardware to give consideration to in case it keeps per cleanser and/or it environment moves by using that it whenever cleaner cleanser is put. In case it doesn’t hold cleanser additionally/or device cannot movement whenever cleanser are applied, alternative your cut-off hardware. Assuming on cut-down product efforts properly, study their verify device to obstruction towards to find out if its lost. Substitute when appropriate.
Confirm ones metal vary to the exhaust catalyst plus will exhaust ports of damage or perhaps holes your can provide the false checking.