We need to pass the State Emissions Test and our fuel pressure is oscillating, making the engine computer perform high fuel cuts... So a new fuel pump with fuel pressure regulator was ordered and swapped. You can see how to do the fuel pump replacement in the video. What a surprise we saw with the fuel pressure of the new pump! After the swap, both fuel trims were checked, it was quite interesting. After that, we raced the engine to the red line and then...then we gave a shot to the state emission test. It was tempting... just watch.

TOOLS
- torx socket T25 for the fuel pump cover
- small ratchet
- some pliers to hold the carpet up
- some diagnose tool, can also be a BT for the smart phone, but not necessary for the swap, just to erase some fault codes if needed

MATERIAL
- new fuel pump
- 300 mm of sheet metal to make a wrench for the big plastic fuel pump nut, the nut diameter is 145 mm

0:00 Intro
00:25 Accessing the fuel pump
00:37 Securing the car carpet
00:48 Unplugging the fuel pump
01:46 Making custom fuel pump nut wrench from sheet metal
02:08 How to remove the fuel pump nut
02:35 How to remove the fuel pump
03:39 The factory fuel pressure stamp on the oem fuel pump
04:00 Unpacking the new fuel pump
05:15 How to install the new fuel pump properly
08:26 First start with the new fuel pump and fuel pressure build up
09:06 Erasing the fault code with diagnostic tool
09:40 Watching the short and long term fuel trims with the new pump
11:14 Top speed test on third gear
11:40 State emission test
12:56 Outro


OTHER VIDEOS TO
MITSUBISHI COLT 1.1i 2005
- Negative Fuel Trim Diagnosis: https://youtu.be/YbtnNB78Gg8
- O2 Sensors Replacement https://youtu.be/cAJpOqKQsPQ
- Sway Bar Bushings Swap: https://youtu.be/gIICHQtlf6s
- Control Arms Repair: https://youtu.be/KN2zH4ha45U
- Timing Chain Swap: https://youtu.be/p6i8FQgiYZo
- Valve Stem Seals Replacement: https://youtu.be/RMI4wVcFK8g
- Valve Clearance Adjustment: https://youtu.be/MQH0f259LA4
- Clutch Swap: https://youtu.be/ZzOACT0R6PY
- End Silencer Swap: https://youtu.be/Y_N1nzQXVxg
- Sway Bar Link Swap: https://youtu.be/YG843TXEbgg
- Hand Brake Lever Travel Adjustment: https://youtu.be/NyjHg9j8w-A
- Drum Brake Repair: https://youtu.be/zim3E3xfmcA
- Quick Pollen Filter Change: https://youtu.be/Runa_s3hrVw
- Oil and Filter Change: https://youtu.be/AgN0_T4e5QY
- Water Pump Replacement: https://youtu.be/qVbP1uWO6wI
- Alternator Replacement: https://youtu.be/k6ojRZhBRE4
- Rear Shock Absorbers Change: https://youtu.be/GRdVvSHh_x0
- Headlight Change: https://youtu.be/wmszuGVdj9M
- Air Filter Change: https://youtu.be/wVdEe_rPEgo
- Spark Plugs Change: https://youtu.be/lyQ0XRKy23g
- Pollen Filter Change: https://youtu.be/DRem10iWsLg

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Hochgeladen am 12.06.2025   Problem melden   Dieses Video bei YouTube   REBUILD Lab bei Youtube