Mazdaspeed 3 - MAF Connector Harness Replacement

Опубликовано: 27 Июнь 2026
на канале: Wannabe Tuners
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In this video, I install a new Mass Air Flow sensor connector replacement harness into the Mazdaspeed 3. I've been having an issue that started a few years ago, when I noticed my Long Term Fuel Trims deviating drastically from what they normally were. My first thought was an air leak, but after checking things over and doing more research, I discovered that this is actually a common issue, caused by a loose electrical connection between the electrical pins and wiring strands within the MAF connector. These incorrect voltage signals from the MAF sensor prevent the ECU from accurately fueling the engine via the fuel injectors. Thanks for tuning and enjoy!

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00:00 Intro
00:14 Explanation of the issue
02:06 Soldering in the new connector
12:46 Did it fix the issue?
14:41 Driving/Pulls

Mods in this video:
1. Bnr S5 Turbo w/ Tial MVR 44mm Ewg
2. DM PCV Plate w/ Dual Vented Cans
3. Cobb Accessport V3 (self tuned)
4. Aeromotive 325 LPH Fuel Pump
5. Bridgestone Potenza RE-71R
6. Stratified Guardian Angel V3
7. Full Race Exhaust Manifold
8. Ngk One Step Colder Plugs
9. 6th Port Aux Fuel Injection
10. Corksport Intake Manifold
11. CS Stage 2 Rear Motor Mount
12. DM Trans side Motor Mount
13. DM Pass side Motor Mount
14. Crushed In-Tank Regulator
15. Custom Radiator Ducting
16. Autotech HPFP Internals
17. Eibach Lowering Springs
18. Corksport Injector Seals
19. DM Egr Delete/Block Off
20. Cpe Catless Downpipe
21. Cfm Oil Breather Cap
22. Jbr Raider's Air Damn
23. Turbosmart OPR T40
24. MST Suzuka Wheels
25. Koni Yellow Shocks
26. FP Red Inline Filter
27. Gen 2 Valve Cover
28. CS 3.5 Inch Intake
29. Cobb 3 Port Ebcs
30. Fidanza Flywheel
31. Jbr Under Route
32. Cobb Xle Bpv
33. AEM Gauges
34. Cnt Catback
35. Built Engine
36. Tr8 Fmic
37. Wot Box