John Lor

[John lor]

1987 300-e
I have been troubleshooting a "cold start" problem with my '87 300-e. The symtoms are 1. Takes multiple try's to start the engine.
2. Once the engine starts it runs as if it choking. it chugg's and if I press the accelerator the engine will quit. I have to let it chugg along for about a minute or two and only then can I rev the engine and drive.
I was told that this problem could be cured by replacing the "cpld start valve".
The dealer wanted 400.00 so I shoped around and found a "BORG/WARNER" cold start valve for 200.00. So I replaced it and I am having the same problem. Could the new valve be defective? Do I have to purchase one from the dealer? Can anyone give me some advise on what to try next?
Thanks, John Lor