Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

No fuel pressure. Help!

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Old 05-06-2013, 05:08 PM
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Default No fuel pressure. Help!

I went to Mapco today and when I came back out, the car started for a second and died then it wouldn't start back. I pulled a CMP sensor code as well. I've read that the camshaft position sensor is tied to the fuel system. Where is it and how much trouble is it to fix?
 
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Old 05-06-2013, 10:32 PM
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Update on the situation, I'm back at Mapco and I shorted the relay and the pump did not come on. I beat the top of the pump in hopes that it would work temporarily but nothing happened. I am also getting spark so that should shoot down the possibility of a cam sensor. I am going to do a more thorough test once I get the car home and torn apart.
 
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Old 05-06-2013, 11:38 PM
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A bad cam sensor wouldn't let the car start at all. Sounds like your fuel pump.
 
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Old 05-06-2013, 11:44 PM
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Originally Posted by ibified
A bad cam sensor wouldn't let the car start at all. Sounds like your fuel pump.
Seems like it. I plan on crossing the pump leads to a battery to be certain that it's the pump. I'll also check the voltage at the harness while I'm in there. What makes this situation worse is that I was all ready to do a turbo rebuild on this thing tomorrow. There went THAT idea.
 
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Old 05-07-2013, 01:01 AM
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Ugh....sorry to hear that.
 
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Old 05-07-2013, 02:50 AM
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Why would a no start stop you from rebuilding your turbo? If you had a bad cam sensor code I'd replace that before I started digging into the fuel pump. Look at the connector real close to make sure it's not falling apart.
 
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Old 05-07-2013, 05:44 PM
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Turns out the fuel pump had bad contacts inside the motor. I knocked it really hard while applying power and it spun up. Put it back in the car to go get a pump and it fired right up. I now have a new pump and it runs great except that the turbo is still noisy. The reason the pump prevented me from rebuilding the turbo today was that I HAD to get the car running. It's my only way to and from work. Now I have to pay off a $350 bill with the parts store I work at.
 
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Old 05-07-2013, 10:17 PM
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Glad you have it running.
 
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Old 05-09-2013, 12:29 PM
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Thanks for reporting on what the issue was. A lot of posts leave everyone hanging, its great to get closure and education at the same time.
 
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