SR20 Forum banner

Cleaned my EGR system and it fixed my IDLE!

1474 Views 10 Replies 4 Participants Last post by  brian
This is how I did it:

Okay, do your tune up, plugs, wires, cap, rotor, fuel filter, air filter. Next, there are 3 modules you need to clean. 2 on the back of the engine, oval discs. and one on the front. Remove these. The left one you will need some high temp sealant before putting it back on. Get some carb cleaner, and clean them good, inside and out, spray into the tiny holes, into the diaphram, push it up and down to help it loosen anything. Get a small wire and stick it into the small holes to help as well. Clean both the back units the same. The front unit, remove the hoses, and pull it off. Remove 2 tiny screws that hold a bracket down that goes across the top of that. That might be hard to pop off the circular item, but either pop it around or wedge it out carefully. Next, clean it same way, with wire, carb cleaner, and move the diaphram. Clean some of the hoses. Check hoses, if they need replacing if hard, or cracked do so. And replace your O2, once that is done, do your timing and idle per the instructions on And it should be solid.
1 - 1 of 11 Posts
The three modules Russ was talking about are the EGR valve, EGR-BPT, and the EAI V. I tried cleaning my EGR valve, but I found that in the long run it's better to just replace it. Same with the BPT and the EAI V. Cleaning works for the short run, but eventually you'll have to replace them. Also the best way to clean your EGR pipe, initially, is to remove the pipe and then clean it out with some solvent.
Also when you clean/replace your EGR valve buy a new OE gasket for it. You'll see what I'm talking about when you take yours apart.
Also, don't forget to clean out your throttle body.
1 - 1 of 11 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.