Will not start

Tiny
ALFRED SAMPLE
  • MEMBER
  • 2002 VOLKSWAGEN PASSAT
  • 1.8L
  • 4 CYL
  • 2WD
  • MANUAL
  • 170,000 MILES
The battery had went dead and I replaced it the car did not start after putting a new battery in. It will turn over, but no fuel was getting through the system. I replaced the fuse and the relay and the fuel pump still no fuel getting through the system. I've even replace the 40 amp fuse next to the ECU. What else am I missing?
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Thursday, March 14th, 2019 AT 5:38 PM

7 Replies

Tiny
SCWICKEDSTANG
  • EXPERT
Hello,

Have you checked for spark yet? If you are not getting fuel to your engine, that is one thing, but, believe it or not, if you are not getting fuel and also not getting spark, it narrows down what the problem is dramatically.
So, if we could get you to check for spark for us that would be great. I have included a link below for you to go to.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Please go through this guide and get back to us with what you find out.

Thanks,
Alex
2CarPros
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Thursday, March 14th, 2019 AT 6:25 PM
Tiny
ALFRED SAMPLE
  • MEMBER
I have spark when I spray starting fluid, it tries to start.
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Thursday, March 14th, 2019 AT 9:07 PM
Tiny
SCWICKEDSTANG
  • EXPERT
Hello again,

Okay let's start tracing the fuel pump circuit and see if you are not battery+ (12 volts) to it.To do this you will have to use a multi-meter. I have included a link below if you are not familiar with using one.

https://www.2carpros.com/articles/how-to-use-a-voltmeter

In the diagrams down below I have included information on the fuel pump connector as well as wiring diagrams. Please use this information and take a reading at the fuel pump connector and see what the voltage is there. You will need an assistant to be cranking the car while you do this, as if you just the key on, the fuel pump will only turn on for two seconds, just long enough to prime the system.
Please get back to us with what you find out and we can go from there.

Thanks,
Alex
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Friday, March 15th, 2019 AT 12:27 PM
Tiny
ALFRED SAMPLE
  • MEMBER
Not getting power to the fuel pump. I have checked all the relays and fuses the are all good. Also not getting any power to fuel injectors.
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Saturday, March 16th, 2019 AT 10:01 AM
Tiny
SCWICKEDSTANG
  • EXPERT
Hello again,

Do me favor and double check for voltage at the fuel pump relay again. If you have no power there then check for power at the Power Supply Relay at the left rear of the engine compartment. I am getting this information from the top of the wiring diagrams I sent diagram 1 of 3 top of the diagram. Get back to us with what you find out.

Thanks,
Alex
2CarPros
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Saturday, March 16th, 2019 AT 1:32 PM
Tiny
ALFRED SAMPLE
  • MEMBER
Getting no power to fuse or relay for fuel pump.
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Saturday, March 16th, 2019 AT 2:03 PM
Tiny
SCWICKEDSTANG
  • EXPERT
Hello again,

Okay, are you getting power at pin #22 on the motronic engine control module(left side of 1 of 3 on the wiring diagrams. It should have a white wire with a yellow stripe going into it. Your ignition switch can either be in run or start for this test. Get back to us with what you find out.

Thanks,
Alex
2CarPros
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Saturday, March 16th, 2019 AT 8:32 PM

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