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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

Matt, I pulled the connector on the ICU and cleaned the connector with some DeOxit contact cleaner. The connector interfaces looked fine with no noticeable corrosion or distorted contact blades or receptacles. Is it possible the ICU has failed and is causing the rich condition? The car seems to run pretty well except for the slow start and lower gas mileage.

My 1992 Volvo 940 Rex Regina does not have a cold start valve or injector under the middle of the intake manifold. It does have an Idle Air Control Valve, but would that impact fuel usage?

Any other thoughts? My initial post describes everything I have serviced to date.

Thanks,






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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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