New here picked up an 86 accord lxi 255k i'm getting code 12 for egr but it seems to be opening. any one know what this pieceis part number nd 100846-0140? Seems to be a very big vacuum leak. thanks for any info.

bigger

 

That is an idle control solenoid valve.

In the DIY section, open up online manuals thread. spoonhonda site has a shop manual for an 86 accord that you can download. It is an invaluable tool to help with car repair.

 

Thanks for info. Great tip on manuals, i was just going to get one. That service manual is a bonus. Thanks.