Q: 1995 Honda Accord - Failed emissions due to having 1500 of 900 NOx ppm. Is there an easy fix here? They are saying it will cost me

asked by on August 08, 2017

My Honda Accord failed emissions - Everything passed except having 1500 / 900 (allowed) NOx ppm. Is there an easier fix than paying ~$150 for them to have it pass?

Thank you in advance.

My car has 109000 miles.
My car has an automatic transmission.

If you are producing too much NOX this means your combustion is running too hot. This is usually caused by the engine running too lean or the EGR system is not flowing enough to cool the combustion. You should remove the EGR valve and check to see if the port holes are clogged and clean out the ports of carbon and spray into the ports with combustion cleaner to help clean out the ports and valve. If they are not clogged and the valve is clean then you will need to find out why the engine is running too lean like the injectors are needing cleaned.

Was this answer helpful?
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

Odd sound coming from L/F tire. Almost sounds like the tread only is rubbing but nothing is hitting it.

You can rule out the tire as a possibility by simply moving that left front wheel/tire assembly to the rear. After you do that, if the noise persists at the left front, then the tire is not implicated. Wheel bearing...

Direly need advise on what to do here.

The problem you have with the cars engine and transmission will far exceed the costs to repair it and will not be worth the money to do any of the repairs. If you want to fix the head gasket leak...

Drive belts make high-pitched chirping sound

Firstly, I would recommend replacing your serpentine belt as it is a regular maintenance item on all vehicles with internal combustion engines that use a belt. The reason for the noise is that over time after the belt has been...

Related articles

The Top 5 Selling Cars in Florida in 2012
Florida Florida offers great weather year round, and the fact that snow and ice never factor into the equation means drivers don’t have to focus on the overall vehicle handling as they do in other states. The best selling cars...
2012 Jeep Patriot vs. 2012 Honda CR-V: Which One Should I Buy?
The mid-size SUV is a great vehicle for getting a lot of people from one place to another, with a decent price point and pretty good ongoing fuel economy. While they are never going to get the amazing gas mileage...
The Best Used Cars to Buy If You're a Fisherman
What What do anglers look for, specifically, in their vehicles? Lots of room, plenty of cargo space, and sometimes, the ability to handle rough terrain. Some fishermen also want the option of towing a boat. With that in mind, we...