will faulty crank sensor shut off fuel pump?
hi all,
removed whole exhaust tonight to fit new gaskets, clamps and brackets. while exhaust was off i started it and revved it a few times, it then died. fuel pump not running, fuse, relay and pump ok, am i right in saying the crank sensor can shut down the fuel pump? anythink else that can shut it down? car cranks fine with no untoward noises, i figured the noise created by revving it with no exhaust on has killed something, thanks barks |
Yes..........................
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thankyou :-)
barks |
When the CPS fails, I think the ECU 'thinks' the engine is not rotating. Therefore there is no need for any fuel.Therefore the fuel pump relay gets no signal.
CPS is not very expensive. About $90 in USA. The part number for mine(but verify for yours) is: BOSCH - 0261210204 |
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so I checked fuel pressure at rail by depressing shrader valve and got nothing. Then I put ignition to on and checked the fuel rail again and still nothing. You're saying it can still be the CPS and the only way to tell is to jumper the system and see if getting pressure by fuel rail?
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If there is zero residual pressure in the system & the pump does not run with key "on" Then the fuel pump electrical system is suspect. Easy to test. |
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Thanks |
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