Skip the auto shop - Our mechanics make house calls

Q: Vehicle failed compliance check.

asked by on

I had the air-ride suspension system removed due to an inflation problem. Since then, my Check Engine light has been on. When I went for my vehicle compliance check, it failed due to code P0410, a Secondary Air Injection System Malfunction, as well as a second code P0014.

A: Hello you have two concerns going on here. ...

Hello you have two concerns going on here. Lets start wit the P0410 for the secondary air injection. Start by checking the fuses. You should hear the pump come on within the first few minutes of start up. If the fuse for the air pump has blown the pump has failed and will need replacement. If the pump works the output should be check, strong air flow on the output side. The oxygen sensors should be check, with the air pump running the oxygen sensors should drop really low like 20mv. If the sensors don’t drop that low, create a large vacuum leak like from the brake booster to see if the voltage drops that low. If it doesn’t the oxygen sensor should be replaced. If the voltage drops below 20mv the secondary air passage could be plugged in the cylinder heads and will need to cleared out. You may need the aid of a mechanic to perform some testing to monitor pinpoint your problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Check Engine light on the Dashboard.

Hi there. The code P0420 could have an issue with the following: Having a damaged or failed oxygen sensor The engine coolant temperature sensor is malfunctioning Damaged or leaking exhaust manifold or leaking muffler / catalytic converter The spark...

Q: P0014 shows up, will it pass inspection?

Hi there. In most urban areas, if any code is set (or at least if any engine/transmission code is set) they will fail the inspection and send you back for repairs. In your case with the P0014 code, sounds like...

Q: It won't start unless the door locks work

Hi there, thanks for writing in. I'd be happy to help. This a common issue with the anti-theft feature in your car, which is reset when changing the battery. In the fuse box, there should be a fuse marked "MALL...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.