I installed the rest of the new injectors. Now the car will start and run but it won't idle. It will only start if I hold the gas pedal down a little as I crank the engine. It then starts, revs and runs very smoothly but dies as soon as I take my foot off the gas.

I let it warm up to see if that would help but it didn't. I shut it off then discovered I had a fuel leak from one of the lines attached to the fuel distributor, probably the main supply line.

Would a fuel leak from the main supply line allow the engine to run and rev well but not idle?

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2000 Mercedes S500
1990 Mercedes 560SEL
1970 Triumph Spitfire