Your check engine light is on and reads that your egr valve has insufficient flow can you soak in parts cleaner to clean out possible carbon cure problem?

No, you should not soak your EGR valve in parts cleaner. While carbon buildup is a common cause of insufficient EGR flow, soaking the valve in parts cleaner can damage its delicate internal components. The EGR valve is a precisely engineered part with small passages and a diaphragm; harsh chemicals can damage these, rendering the valve unusable.

Instead of soaking it, try these methods:

* Manual Cleaning: Carefully remove the EGR valve (refer to your vehicle's repair manual for instructions). Use a small brush (like a toothbrush) and a suitable cleaner (like carb cleaner – use with extreme caution and in a well-ventilated area) to gently clean the carbon deposits from the valve's passages and diaphragm. Avoid using excessive force. Inspect the valve for any damage while cleaning.

* Professional Cleaning/Replacement: If manual cleaning doesn't resolve the issue, or if you're uncomfortable cleaning the valve yourself, take it to a mechanic. They have the tools and expertise to properly clean or replace the EGR valve. A replacement is often a more reliable solution than trying to revive a heavily clogged valve.

Remember to clear the check engine light after addressing the issue using an OBD-II scanner. If the light returns, there may be a more serious underlying problem.