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420A Help identifying fuel return at firewall

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EYEHAYCHA

Probationary Member
1
0
Apr 18, 2026
Port Huron, Michigan
Alright everyone, I tore my car apart 4 years ago and could use a little help to figure out where these lines go. Its a 1995 420a with the fuel return line. Now in the 1st pic, you'll see the fuel return line on fuel rail circled in red, and then there is another hardline circled in red at the firewall, and I believe the fuel return line connected these 2 lines.

Now for the 2nd pic, opposite end of my fuel rail (95) has a little nipple on it, is this a vacuum line? I feel if I remember correctly there was nothing on that nipple at all, but I could be mistaken. Also, there is another hardline coming out from by the strut tower, also circled in red which I am unsure on where this goes.

Thank you for any help. Ive been searching all over the web for these and cannot figure it out.

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