Need help! 93 90cs won't start... I can hear that the fuel pump is not turning on. I've checked

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Old 07-28-2003, 10:03 AM
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Default Need help! 93 90cs won't start... I can hear that the fuel pump is not turning on. I've checked

the pump and it works fine so I replaced the relay but still no start.

Could there be another sensor (hall sensor, ISV or ???) that has gone bad and is telling the car not to start and that is way I don't hear the fuel pump turning on?

I've check the OBD codes and got 4331 for the ISV, could this code cause a no start?
Old 07-28-2003, 10:33 AM
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Default Re: Need help! 93 90cs won't start... I can hear that the fuel pump is not turning on. I've checked

Is there a vaccum leak or a broken hose anywhere?
Old 07-28-2003, 11:42 AM
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Default Re: car type would help...

I assume you checked the motor fuses?
Old 07-28-2003, 11:46 AM
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Default Re: also, does the engine turn when you are trying to start? lights dim?

and check what TabulaRosa said
Old 07-28-2003, 11:49 AM
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Re: It's a 93 90cs as stated above. And yes I've checked all fuses and none are blown.
Old 07-28-2003, 11:50 AM
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Re: Could a vaccum leak cause the fuel pump not to work?
Old 07-28-2003, 11:52 AM
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Default Re: also, does the engine turn when you are trying to start? lights dim?

Yes the engine turns over fine and I haven't noticed any lights dimming.
Old 07-28-2003, 12:59 PM
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Default Re: take a look at wires?

Could of rusted/corroded at fuel pump.. not sure what else to say, only had the relay stop working and a spark plug die on me (which stoped the engine completely on a i5)

try shorting the pump at fuese box?
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