URGENT HELP NEEDED rs turbo still not starting

mk1sierra · 15-03-2010, 12:30 PM

hi guys i need some help right i replaced the relay still nothing connected up another battery to the fuel pump n the car was running like that off the battery the thing i done get is when i check the positive on the fuel pump its comming up as a negative if some 1 can tell me pleaseeee

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ECU Monitor Enthusiast · 15-03-2010, 12:33 PM

The pump will only run when the car is being started or running.

It may pulse on for a few seconds when the ignition is turned on.

Where are you measuring the voltages from ? (Where are you putting meter leads)

mk1sierra · 15-03-2010, 12:39 PM

the thing is the pump isnt even making a noise even when i try 2 start it :s
im putting meter on the leads at the fuel pump itself and then getting a reading from the relay area but the meter is telling me that the positive and negative are both negatives when the cars ignitions is on???

mk1sierra · 15-03-2010, 12:43 PM

Quote:

Originally Posted by Flux Capacitor.

The pump will only run when the car is being started or running.

It may pulse on for a few seconds when the ignition is turned on.

Where are you measuring the voltages from ? (Where are you putting meter leads)

WOOOOP

she started up cheeRS 4 ur help mate

ECU Monitor Enthusiast · 15-03-2010, 12:44 PM

You wont get a positive at the pump until it needs to run.

Is the fuel pump fuse ok ?

The relay should "click" when you try to start the car although it may be hard to hear it !

If the relay doesnt activate then there could be problems withteh distributor sensor and/or power to the silver ecu as teh relay gets the output of this sensor in order to drive the fuel pump relay.

You can check the power to the dizzy sesnor by putting a meter accorss the 2 outer pins on the connect. You should see 12 volts with the ignition on.

mk1sierra · 15-03-2010, 12:51 PM

Quote:

Originally Posted by Flux Capacitor.

The pump will only run when the car is being started or running.

It may pulse on for a few seconds when the ignition is turned on.

Where are you measuring the voltages from ? (Where are you putting meter leads)

WOOOOP

she started up cheeRS 4 ur help mate

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15-03-2010, 12:33 PM	#2
ECU Monitor Enthusiast BANNED BANNED Garage is empty, add now Trader Score: (1) Join Date: Jul 2003 Location: Wiltshire Posts: 12,501 Rep Power: 0	The pump will only run when the car is being started or running. It may pulse on for a few seconds when the ignition is turned on. Where are you measuring the voltages from ? (Where are you putting meter leads)

15-03-2010, 12:39 PM	#3
mk1sierra 15000 Garage is empty, add now Trader Score: (0) Join Date: Aug 2009 Location: london Posts: 21 Rep Power: 0	the thing is the pump isnt even making a noise even when i try 2 start it :s im putting meter on the leads at the fuel pump itself and then getting a reading from the relay area but the meter is telling me that the positive and negative are both negatives when the cars ignitions is on???

15-03-2010, 12:44 PM	#5
ECU Monitor Enthusiast BANNED BANNED Garage is empty, add now Trader Score: (1) Join Date: Jul 2003 Location: Wiltshire Posts: 12,501 Rep Power: 0	You wont get a positive at the pump until it needs to run. Is the fuel pump fuse ok ? The relay should "click" when you try to start the car although it may be hard to hear it ! If the relay doesnt activate then there could be problems withteh distributor sensor and/or power to the silver ecu as teh relay gets the output of this sensor in order to drive the fuel pump relay. You can check the power to the dizzy sesnor by putting a meter accorss the 2 outer pins on the connect. You should see 12 volts with the ignition on.

15-03-2010, 12:51 PM
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