Slow O2 Sensor Replacement and Engine Troubles on Colt, Part 1 (HD)

The 1.1i Colt started to run badly, something is seriously wrong with it, it loosed some power and is struggling at idle. This is the first video on DIY finding out, what went wrong. Firstly we need to look inside the processes and look at what the lambdas are doing, considering they have over 200.000 km, they cannot operate well anymore. And that was confirmed. So thay had to be changed. The cheap BT OBD dongle was a bad decision. Had to buy another reliable scanner, althoug only a basic one. We could then see what the new lamda were doing, how the short term fuel trim and long term fuel trim were affectedand, making some guessing on what to do later. The issue wan't be solved in this video.

TOOLS
a reliable basic scanner so far
french wrench
extension on the wrench to release the old lambdas
prying tool for interior clips
jack up
jack stand
pliers

MATERIAL
O2 sensors 2 pieces - the rear one should have shorter wiring, but...
Parts number I used: ESL-MS-008
zip tie to make the downstream lamda wiring loom shorter

MITSUBISHI COLT 1.1i 2005
Sway Bar Bushings Swap:    • Sway Bar Bushings Replacement, not the swa...  
Control Arms Repair:    • Mitsubishi Colt 1.1i - Control Arms Repair...  
Timing Chain Swap:    • Mitsubishi Colt 1.1i - Timing Chain Swap (HD)  
Valve Stem Seals Replacement:    • Mitsubishi Colt 1.1i - Valve Stem Seals Ch...  
Valve Clearance Adjustment:    • Mitsubishi Colt 1.1i - Valve Clearance Adj...  
Clutch Swap:    • Mitsubishi Colt 1.1i - Clutch Swap (HD)  
End Silencer Swap:    • Mitsubishi Colt 1.1i - End Silencer Swap (HD)  
Sway Bar Link Swap:    • Mitsubishi Colt 1.1i - Sway Bar Link Swap ...  
Hand Brake Lever Travel Adjustment:    • Mitsubishi Colt 1.1i - Hand Brake Lever Tr...  
Drum Brake Repair:    • Mitsubishi Colt 1.1i - Rear Drum Brakes Ov...  
Quick Pollen Filter Change:    • Mitsubishi Colt 1.1i - Quick Pollen Filter...  
Oil and Filter Change:    • Mitsubishi Colt 1.1i Engine Oil and Filter...  
Water Pump Replacement:    • Mitsubishi Colt 1.1i Water Pump Swap incl....  
Alternator Replacement:    • Mitsubishi Colt 1.1i - Alternator swap inc...  
Rear Shock Absorbers Change:    • Mitsubishi Colt 1.1i - Rear Shock Absorber...  
Headlight Change:    • Mitsubishi Colt 1.1i Headlight Replacement  
Air Filter Change:    • Mitsubishi Colt 1.1i Air Filter Change  
Spark Plugs Change:    • Mitsubishi Colt 1.1i Spark Plugs Change  
Pollen Filter Change:    • Mitsubishi Colt 1.1i - Pollen Filter Change  

#mitsubishi #mitsubishicolt #o2sensor #diy #longtermfueltrim #shorttermfueltrim #stft #ltft
#carmaintenance #howtochangelambdasensor #cardiagnostics #fueltrimexplained
#lamdasensor