P0299 & Honda TurboCharger Replacement PART #1
John's DIY Odds & Ends · 28K views · 56:31
Skill Level
AdvancedTime Required
Multi-dayEstimated Cost
$200–500Equipment
Honda 2018 Accord 1.5LPermit Required
NoTools Needed
diagnostic scanner, oscilloscope, socket set, wrenches, screwdrivers, torque wrench, gasket scraperI was getting consistent P0299 Turbo Underboost codes on warm days on my 1.5L 2018 Honda Accord. This video shows my diagnosis and replacement of the TurboCharger. There are two parts to this video.
Here is Part #2: https://www.youtube.com/watch?v=1pN7alfOVgI
00:00 Test Drive & P0299 Code
02:03 Boost Under-pressure Waveforms
03:17 Turbo Overview
08:20 Diagnostic Checklist
14:55 Intake Parts Removal
17:25 O2 Sensor Removal
19:04 Intake Pipe Removal
28:25 Heat Shields Removal
33:58 Catalytic Converter Removal
52:38 Bonus Footage: Freeing Exhaust Bolts
Here are the part numbers of parts that were replaced:
oil supply line washer top: 15535-6A0-A00
oil supply line washer/screen bottom: 15533-59B-003
turbo to engine gasket: 18233-6A0-004
turbo to cat gasket: 18234-59B-004
oil return line gasket: 15544-59B-003
coolant lines gasket: 19524-59B-004
intake air pipe to turbo gasket: 17275-6A0-A01
nuts turbo to engine block: 90012-59B-004
nuts cat to turbo: 90012-59B-004
nuts exhaust to cat: 90212-671-005
turbocharger: 18900-64A-A01
gasket exhaust pipe to cat: 18302-SP0-003