Fuel Modules and Pumps
![FuelPump](/images/default-source/theme/foximages/fuelpump.tmb-460w.jpg?Culture=en-GB&sfvrsn=8e877789_49)
Distinctly Delphi Fuel Pumps
- Anodized aluminum can reduce flow loss by up to 100% in severe contamination
- New carbon commutator extends fuel pump life by up to 300% over commonly used copper commutators by reducing oxidation and premature wear*
- Over-molded armature protects pump windings in corrosive environments
- Button style contacts feature additional wear material that can last for over 1 million cycles
- High capacity synthetic mesh inlet filter is able to filter out all items larger than 30 microns
- Distinctly Delphi with an electric blue fuel pump top, module top cover and strainer material
*In contaminated fuel or fuel with alcohol blends
Delphi part number | Popular Applications | EMEA car parc |
FG1455-12B1 | AUDI A1/A1 Sportback/S1 Quattro/S1 Sportback Quattro, SEAT Ibiza/Ibiza SC/Ibiza ST/Toledo, SKODA Fabia/Fabia Scout/Rapid/Rapid Spaceback/Roomster/Roomster Praktik/Roomster Scout, VW Polo | 12.4M |
FG0989-12B1 | AUDI A3/A3 Cabrio/A3 Quattro/A3 Sportback/A3 Sportback Quattro, SEAT Altea/Altea Freetrack/Altea XL/Leon/Toledo, SKODA Laura/Octavia/Octavia Scout/Yeti, VW Beetle/Bora (Jetta)/Eos/Golf/Golf Cabrio/Golf Estate/Variant/Golf Plus/Golf Van (Variant)/Jetta/Jetta Wagon/Scirocco | 9.2M |
FG1061-12B1 | ABARTH 500/500C/595/595C/695, FIAT 500/500C/500S/Panda/Panda Classic/Panda Van | 8.9M |
FG1070-12B1 | AUDI A3/A3 Quattro, SEAT Leon/Toledo, SKODA Octavia/Roomster/Roomster Praktik/Roomster Scout, VW Bora/Bora Estate/Variant/Cabrio/Golf/Golf Cabrio/Golf Estate/Variant/Golf Van (Variant)/Jetta/Jetta Wagon/New Beetle | 5.6M |
FG1498-12B1 | CITROËN C1, PEUGEOT 107/108, TOYOTA Aygo | 5.3M |
![Integrated_OE_expertise rev2.png (1)](/images/default-source/default-album/integrated_oe_expertise-rev2-png-(1).tmb-660w.jpg?Culture=en-GB&sfvrsn=a9375dbb_1)
![Leading_vehicle_coverage rev2.png](/images/default-source/default-album/leading_vehicle_coverage-rev2-png.tmb-660w.jpg?Culture=en-GB&sfvrsn=d8b5757c_1)
![Advanced_diagnostic_support rev2.png](/images/default-source/default-album/advanced_diagnostic_support-rev2-png.tmb-660w.jpg?Culture=en-GB&sfvrsn=fa846853_1)
The Delphi Difference
-
100 years of OE experience, supplier to the world’s top automakers
-
OE heritage and knowledge built into every aftermarket part
-
Comprehensive portfolio for a wide range of vehicles and model years
-
Streamlined SKUs for easy inventory management
-
Support through tools, tips and training
![delphi-difference](/images/default-source/theme/foximages/delphi-difference.tmb-460w.jpg?Culture=en-GB&sfvrsn=211d3f1f_56)
Related product resources and downloads
![Part resource centre how to video icon](/images/default-source/default-album/part-resource-centre-icons-how-to-video.tmb-1920w.png?Culture=en-GB&sfvrsn=3b4440e4_5)
Resource Highlights
In this article you will find out about how to perform a voltage drop test from the power side and from the ground side.
Insufficient pressure and flow are an indication that a fuel pump is under-performing, but do not necessarily mean that it is failing. Low voltage or a bad connection or ground will cause a pump to underperform, producing the same test results as if the pump were bad. Before replacing any fuel pump based on pressure and flow test results, always follow the vehicle manufacturers recommended procedure for testing all electrical connections and the electrical system charge. A minor issue such as a loose ground can cause many problems that resemble more serious malfunctions.
Lets explore how to do a voltage drop test from the power side, and then from the ground side, too.
- We always put safety first, so be sure you are wearing safety glasses. Do NOT probe the vehicle electrical harness connector with DMM leads. Doing this can damage the terminals in the harness, creating the potential for an overheated fuel pump connector due to excessive electrical resistance. Always use the proper test probe to perform electrical tests.
Voltage drop test from the power side
To do the test from the power side, you’ll need a DMM— that’s a digital multimeter. You’ll need access to the fuel pump connector and battery.
- Take the multimeter and set it to twenty volts D-C scale, or D-C if your multimeter has auto-ranging capabilities.
- Now connect the multimeter positive probe to the battery positive terminal. With the fuel pump wire harness connected to the fuel pump, connect the multimeter negative probe to the power feed wire at the fuel pump connector.
- Turn the ignition to the “on” position. Keep in mind that the pump will only run for about two seconds while the relay is in prime position, or until it gets an RPM signal. The reading should be less than 0.2 volts. If the reading is greater, check for resistance in the power supply circuit for the fuel pump.
Voltage drop test from the ground side
Now, to do the test from the ground side, the process is very similar. You will again set the multimeter to twenty volts D-C scale, or D-C if your multimeter has auto ranging capabilities.
- This time you will connect the multimeter positive probe to the ground terminal of the fuel pump connector. Make sure the fuel pump wire harness is connected to the fuel pump. Then connect the DMM’s negative probe to the battery negative terminal.
- Turn the ignition to the “on” position. Again, keep in mind that the pump will only run for about two seconds while the relay is in prime position, or until it gets an RPM signal. Your reading should be less than 0.2 volts D-C. If it’s greater than that, check for resistance in the ground supply circuit for the fuel pump.
![training portal](/images/default-source/theme/pages/delphi-technologies-training-prospectus-uk-2020-48.tmb-1920w.jpg?Culture=en-GB&sfvrsn=ca1bb25e_22)
Visit our Technician Library for access to Documents and Downloads
Get in touch
The full Delphi Fuel Management product range
![where to buy](/images/default-source/theme/hero-images/where-to-buy-2.tmb-1920w.jpg?Culture=en-GB&sfvrsn=7bf43465_21)
Find out where to buy Delphi parts
![where to repair](/images/default-source/theme/hero-images/adobestock_141766560.tmb-1920w.jpg?Culture=en-GB&sfvrsn=c941d674_17)