I'm struggling unsuccessfully to remove the blue cold start valve on my 1988 300ce-I want to swap it into my 1987 300e, which during the cold weather accelerated weakly until it hit operating temp but now, drives properly from the getgo. I'd appreciate advice on how to disconnect it from the harness-I have dissassembled everything else and have easy access, but can't get the connector off. Thanks.

__________________
87 300e (white/black; amg body kit)
88 300ce (red/cream; amg body kit)
93 300ce cabrio (white/blue/blue top)
93 300ce cabrio (black/grey/black top)
98 ml 320 (totaled @ 137,000 miles)
99 clk320 (black/grey/black top)