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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

I replaced my O2 sensor with an NTK-25002 oxygen sensor. After 332,112 miles it was due for a new sensor. The 2-2-1 and 2-3-2 codes have been eliminated.

Unfortunately, I am still experiencing the fuel rich, 4 second long crank at cold start. However, I also understand that the O2 sensor was not going to correct this situation, since it's signal does not contribute at cold start.






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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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