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RWD - Slow Cold Start, 1992 Volvo 940 Rex Regina, Normally Aspirated

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Slow Cold Start, 1992 Volvo 940 Rex Regina, Normally Aspirated 900 1992

Hi
Two thoughts. 1) Put a set of eyeballs on the ECU and its connector. I recently discovered mine had significant water intrusion and corrosion at the connector, resulting in the engine losing power to the ignition.
2)Has the TSB been applied for the cold start valve? There should be a permanent 321 code stored if it has. You could also simply disconnect the cold start valve to see if it makes a difference.
https://www.brickboard.com/RWD/volvo/1579113/740/760/780/hot_start_problem_1990_740_gl_regina_fuel_system_code_321_231.html
Matt






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New 1 Slow Cold Start, 1992 Volvo 940 Rex Regina, Normally Aspirated [900][1992]
posted by  VKR  on Sat Nov 18 16:18 CST 2017 >

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