PeachParts Mercedes-Benz Forum - View Single Post

BENZ-LGB · #4 05-03-2001, 12:13 AM

I am about to expose my ignorance...but what's an EHA (what do the letters EHA stand for). Where does it sit/where is it located? What does it do? Why does it leak? How does the leak affect cold idle? If it leaks fuel, isn't there danger of an underhood fire? I have seen the EHA mentioned in posts mostly dealing with rough idle, either cold or warm, and I've always wondered what the EHA is. Also, is there a device that controls fuel pressure as it squirts through the injectors? In my 1991 420SEL there is a large, round metal dome-like structure. It sits underneath the air cleaner housing and towards the firewall. Brass lines come out of this device and lead to each individual injector. I used to own a 1984 300SD and a 1967 250SE and neither one had a similar device. I look forward to your responses. Thanks