Engine Misfire Diagnosis & Fuel Injector Replacement

**PLEASE READ THIS AND THE COMMENT WE PINNED FOR HELPFUL INFORMATION**
In this video, we discuss some logical steps you would go through diagnosing a misfire on your engine and then we show you how to replace all 6 fuel injectors on your Toyota 3.4 L V6 5VZ-FE engine.

On the positive side, Greg reported that he had better throttle response and his engine had more power after the fuel injector replacement. On the negative side, Greg's P0301 misfire code popped up again after 20 miles of driving. So, we're going to try to get Greg back over to do some more diagnosing to try to figure out why he's getting the misfire code. What we do know is his engine runs fine. It idles smooth and he has good power so there's no way he's running on only 5 cylinders.

Motorwest Performance
7851 Alabama Ave Suite 16, Canoga Park, CA 91304
Owner: Martin Diaz
(747) 888-9768
https://motorwestperformance.com/

**PARTS**
*Set of 6 Fuel Injectors from MotorWest Perfomance - #23250-62040
https://motorwestperformance.com/product/upgrade-for-23250-62040/

*Single Fuel Injector from Toyota - #23209-62040
https://amzn.to/2rQv4tX

*Injector O-Rings - #90301-07001
https://amzn.to/2ElVwOU

*Fuel Pressure Regulator O-Ring - #90301-07024
https://amzn.to/2YMXwsW

*Fuel Pipe Gaskets (Aluminum Washers) - #90430-12026 (Need 6)
https://amzn.to/35qCH95

*Upper and Lower Plenum Gaskets - #17176-62040 (Need 2)
https://amzn.to/2LWVcKF

*Throttle Body Gasket - #22271-62040
https://amzn.to/2PLsMo1
**HELPFUL TOOLS**
**If you don't see a tool you need listed below, here's a master copy of Timmy's suggested tools:
https://docs.google.com/document/d/1TV08fumiXvyrb6yBMPl0gsp7UlcQEa9lHtqFNiZWOVI/edit?usp=sharing

*1/4" and 3/8" Flex Head Ratchet Set - (used both these ratchets in this video. They are super functional and will make your wrenching life easier) https://amzn.to/2ql8nNA


*1/4” Drive Regular Extension Set
https://amzn.to/2O9nl2x


*3/8” Drive Regular Extension Set
https://amzn.to/2OehCao


*1/4” Drive 6 Point Standard Metric Socket Set
https://amzn.to/2QIU7te


*3/8" Drive 6 Point Metric Standard Socket Set
https://amzn.to/32WIh0M



*3/8" Drive 6 Point Metric Deep Socket Set
https://amzn.to/37iQjVt


*Flex Head Box End Wrench Set - (used a couple different wrenches in the video. These ratchets are super functional that will make your wrenching life easier) https://amzn.to/31x8BOo


*Milwaukee Mi12 Cordless Ratchet - (this is great for speeding up the removal and reinstallation of fasteners. I use it for most of my jobs to save time.) https://amzn.to/2utRZsE


*Milwaukee M12 Batteries (2 Pack)
https://amzn.to/2uoQlZs


*Milwaukee M12 High Capacity Battery
https://amzn.to/2HEFTpu


*Milwaukee M12 Battery Charger
https://amzn.to/2uo2o9x


*Right Angle Needle Nose Piers - (used to remove hose clamps)
https://amzn.to/2VYUro8


*Small Pick Tool Set - (used to break free hose connections off fittings)
https://amzn.to/2MyN4AH


*Painter’s Tape - (used to cover intake manifold ports)
https://amzn.to/2PnQojx


*20 Piece Screwdriver Set - (nice complete set if you're in the market for a screwdriver set)
https://amzn.to/34aLrQ1


*Long Set of Ratcheting Box End Wrenches - (used to break free fuel rail banjo bolts. The extra length affords you more leverage to break free tight fasteners) https://amzn.to/2oOhndL


*Multimeter - (The one I bought via Amazon isn't available anymore but this one looks pretty good) https://amzn.to/2NcuGwr


*CDI 3/8" Drive 30-250 Inch Pound Torque Wrench - (used to torque all the fasteners for this job)
https://amzn.to/2J8W8Kz

*CDI 3/8" Drive 10-100 Foot Pound Torque Wrench - (used in conjunction with the crows foot wrench to torque fuel rail banjo bolts) https://amzn.to/2U2vUA4


*Brake Cleaner (More affordable option to Clean Streak)
https://amzn.to/2KuJ6Yw


*Crowfoot Wrench Set - (used in combination with the torque wrench to torque fuel rail banjo bolts)
https://amzn.to/362U9Bo


*Battery Terminal Cleaner - (nice tool to clean the battery posts and the inside of the battery clamps)
https://amzn.to/36HovJb

**As Amazon Associates we earn from qualifying purchases.

**Torque Values**
Fuel Pressure Regulator Bolts - 71 in-lbf
12mm Fuel Rail Bolts - 10 ft-lbf or 120 in-lbf
17mm Fuel Rail Bolts - 25 ft-lbf
Timing Cover Bolts - 80 in-lbf
Upper and Lower Plenum Bolts & Nuts - 13 ft-lbf or 156 in-lbf
Throttle Body Bolts and Nuts - 13 ft-lbf or 156 in-lbf

Видео Engine Misfire Diagnosis & Fuel Injector Replacement канала Timmy The Toolman