P0414 Code - Secondary Air Injection System Switching Valve 'A' Circuit Shorted

What Does P0414 Mean?

An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.

engine code P0414	P0414 fix	obd P0414	dtc P0414
obd code P0414	obd2 P0414	P0414 car code	diagnostic code P0414
car code P0414	check engine code P0414	fehlercode P0414	P0414 fiat
codigo P0414	codigo falla P0414	P0414 kody b??dów	codigo de falla P0414

What are the common causes of P0414 ?

• Some aftermarket accessories and performance modifications
• A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
• Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

How do you troubleshoot P0414 ?

The repair needed will depend on the actual cause of the P0414 code. However, possible repairs include the following:

• Replacement of the air pump
• Repair or replacement of a damaged wiring harness
• Repair of corroded connections
• Replacement of damaged intake lines
• Replacement of failed check valves

Searches related to P0414 - Secondary Air Injection System Switching Valve 'A' Circuit Shorted

• p0414 mercedes
• p0414 vw
• p0414 engine code
• p0414 chevy
• p2400
• p0414 jaguar
• p0412
• p2401