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

Volvo RWD 900 Forum

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

I replaced the FPR approximately 1,200 miles ago. The Rex Regina uses a 2.5 bar FPR which was difficult to find. I used a Bosch P/N 0 280 160 227 which is 2.5 bar. By the way I mistakenly had a 3.0 bar FPR in there for approximately two years which was close to when I started to notice a slower start. Changing to the 2.5 bar FPR didn't seem to change a thing in the way of performance. However, when I realized I should be using the 2.5 bar FPR I found one on line and installed it hoping it would maybe reduce the pressure and fuel volume to the cylinders at start up. I was wrong, as I still have the slow start and running rich problem.

I changed the cap and rotor about 5,500 miles ago, I'm thinking I am ok there. My original post defines the preventive maintenance items I have taken care off recently.

Thanks for your thoughts...






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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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