You’ve likely previously heard of the famous EGR valve, the anti-pollution valve. It is not usually appreciated by drivers because it tends to create more problems than anything else… In actual fact, according to the use you are going to make of your automobile, it can become blocked and bring about you a lot of complications. If this is the case, you are likely wanting to know how to clean the EGR valve of your Honda Fit ? Don’t stress, we’ve written this article content to help you with this operation. To do this, we will initially look at the role of the EGR valve, then what are the failures that the EGR valve of your Honda Fit can provoke and at last the part that will likely interest you the most, how to clean the EGR valve Honda Fit?


How to Clean your Honda Fit EGR Valve: Role and Operation

Goal of the EGR valve

The EGR valve of your car has been added to diesel engines principally to lower pollution released by vehicles and to fulfill EURO specifications on Honda Fit . It will therefore control the quality of exhaust gas output and reduce toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we discover how to clean the EGR valve on your Honda Fit , we will take a look at how it works. As seen before, its task is to clean the exhaust gases, so it will be installed at the engine outlet, thanks to a valve, it will be able to return the unburned exhaust gases to the engine for a second burn which will reduce all unburned toxic particles. It will perform principally at low speed because at high speed the combustion is enough to burn all these gases.

How to clean your Honda Fit EGR valve: Identifying faults

The EGR valve, although very useful to limit the pollution emissions of your Honda Fit , will sadly tend to clog up because of soot/gas deposits that will build up in its mechanism, which will inevitably risk blocking the functions of the valve, until completely blocking the engine motor, here are the signs of illness that a faulty EGR valve on your Honda Fit can provoke:

  • Motor light on
  • Power loss
  • Technical inspection rejected
  • Black fumes
  • Automobile that grazes at low speed
  • Low RPM settings

How to clean your Honda Fit EGR valve: In practice

And now we’ll commence the part you are most interested in, how to clean the EGR valve of your car. Here are the two techniques that you can use.

Do it on your own

How to clean your Honda Fit EGR valve system: Without dismantle

Despite the fact this methodology is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, the reality is, you will only need to use fuel additives, equivalent to the products used to clean the injection. These specific solutions must be injected into the running engine, at the right operating temperature, diluted in about 20 litres of fuel and run the engine for 3 or 4 minutes in high rev to clean the EGR valve of your Honda Fit.

How to clean your car EGR valve: With disassembly

Here is the most beneficial methodology, which will require enough access to the EGR valve to do the process without help. If so, the operation is fairly easy. You will need to disconnect the electromagnet from the EGR valve, remove the few screws that hold it in place, and remove it. Once these simple steps are accomplished, now comes the time for cleaning. To make this happen, you will need to use a product such as solvent, petrol, oven cleaning product, which you will leave to act for ten minutes, then scrape off the rest using a scraper, finish cleaning with wire brush. If you want to go further, you can as well clean the two canal on which it is connected which may be scorched, for this, use a scraper and a vacuum cleaner to avoid dropping deposits in the conduits. You will only have to reassemble it and you will have finished cleaning the EGR valve of your Honda Fit.

Have it done by a professional

If, your EGR valve is not reachable because of the series or the engine of your car and if removing it would cause too many difficulties (removing too many elements that hinder access for example), how to clean the EGR valve of your Honda Fit? In such a case, it would be better rather than launching yourself into an overly complex operation, you turn to an auto mechanic. He will be able to do the job more cleanly and will be able, if necessary, to change the valve if it is dead. The cost of cleaning according to the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Honda Fit

At last, some people make a more radical decision to limit the risk of a failed valve. Rather than cleaning the EGR valve of their Honda Fit, they simply prefer to block it in the closed position. This modification will have the result of greatly increasing the pollution released by the automobile, of no longer complying with pollution criteria, of having an engine warning light all day on and ultimately risk fouling the engine. We strongly suggest against making this choice. If you have other questions or want to learn more about your car, don’t be reluctant to take a look at our dedicated page.

To discover more tips on the Honda Fit, take a look at the Honda Fit category.