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Old 07-15-2021, 11:43 PM
speednjay speednjay is offline
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Join Date: May 2010
Location: BAKERSFIELD, CA
Posts: 1,526
93 w124 m104 fuel pump issues

Pumps don’t turn on. Bypassed relay and everything works. Kinda thinking the ovp relay since the abs pump is kinda acting crazy. Ovp looks like original or at least in there a whole. If that isn’t it I’m out of ideas. What else would not flip the fuel pumps on?

Check fuel pressure and it’s 58psi with the engine off. Is that too high? Isn’t it soppose to be 46-52psi?
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Last edited by speednjay; 07-15-2021 at 11:57 PM.
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