Nissan GT-R Engine Assembly
Here are some quick scenes from the Nissan Yokohama engine plant's Clean
Room. It takes an average of 100 minutes for an engine master to assemble
one engine. Each man diligently checks and records the torque spec of
every critical nut and bolt, and the data is stored for the life of the
How modern technology can increase horsepower and gas mileage at the same time.
Emmy Award winning mechanic Scotty Kilmer shows how Fords new ecoBoost gasoline direct injection system can
increase horsepower and get better
gas mileage at the same time. The trick is high pressure direct injection
into the engine cylinders.And, If you like my car help, be sure to watch
my live car talk show every Saturday morning at 10 AM CST on YouTube. I
answer your car questions LIVE there. Just check it out at
eature=c4-overview . And remember, every TUESDAY I upload a new video, so
don't miss them.
GDI High Pressure Pump Construction
GDI High Pressure Pump Construction
Get the Amazon Printed Books:
Get the Android Book-APP:
Get the Kindle Book:
New modern GDI or gasoline direct injection high pressure pumps can be of
two types, the three piston pump and the more common single piston pump,
with a pressure and volume control solenoid. This single piston GDI High
Pressure Fuel Pump is suitable for most homogeneous and stratified
combustion gasoline direct injection engine schemes. Its roller follower or
tappet cam drive plunger designs reduce friction and contribute to fuel
economy and greater power. The pump is an engine driven, on-demand control
pump that features a single-piston and integrated design, also supporting a
wide range of engine software maps. It delivers operating pressure from 30
bar to 200 bar, or 100 to 2900 PSI. These pumps offer a high flow
capability for larger displacement engines. GDi Fuel Pumps includes an
integrated flow control valve for accurate fuel control and an integrated
overpressure relief valve. A one way valve is also included, which helps
maintain the fuel rail internal pressure.
Seen here we can see the cam lobe actuating on the GDI high pressure pump
plunger and piston. Upon simple observation it is a normal piston pump,
with nothing extraordinary about it. However, the key component here is the
fuel pressure control solenoid to the right of the pump side. The ingenious
ingredient here is the high processing power of the ECM used to control the
pump solenoid. The idea is for the ECM to .... Get the whole story right
here in this video... Enjoy...
Amazon Printed-Books & Kindle:
Google Play Android APPs:
Amazon Video DVDs:
Barnes & Noble Nook:
Apple iTunes iPad:
Website and Blog:
Spark Injector Direct Injection System
Here is a prototype of what I'm working on.DIRECT INJECTION. I have a group
set up in yahoo with photos and will share some testing when were ready.
This is a direct injector, you can connect multiple fuel sources as well as
other things to this plug. All fuel enters cylinder through spark plug
hole. Tuners would love to have these for their EMS system, Standalone
Engine Management systems. It rids of what manufactures call fuel
Please join, we need all the support we can get.
There are so many people working on projects like these but were not
unified as we should be.
Fuel Trim (SFT/LFT) vs. O2S B1S2
Me and my friends (Colleagues) repeatedly faced with the fact that the
faulty O2S B1S2 (downstream Oxygen Sensor) was the cause of the DTC P0171
on Lexus RX300 2001MY.
This video (Russian with English Subtitles) shows some of the checking ECM
parameters with faulty probe ( O2S B1S2), by using the "downsream O2S
simulator", before and after installing a new O2S B1S2, and the results of
the active test "A/F Control" by Toyota Techstream.
Troubleshooting fuel pressure problems on a 2002 Intrepid
READ THIS BEFORE COMMENTING! This issue was solved....read on:
My car has an unusual problem. It gets the same fuel economy at 90MPH as it
does at 60MPH and it doesn't like to start when cold. The malfunction
indicator light is not on and there are no stored DTCs. Once the car is
warm, it runs fine except for bad highway fuel economy. (21-23MPG instead
of the usual 25-28MPG) .
I think we found the problem. The fuel pressure is out of the specified
range. Chrysler says the fuel pressure on the LH platform cars should be
58PSI +/- 5PSI..... this car ranged from 36 to over 75 PSI. It's time for a
new regulator. These cars have returnless fuel injection so the regulator
is not on the fuel rail, rather it's built into the fuel pump itself. As
the RPMs increase, the pressure stabilizes which explains the bad fuel
economy at lower speeds and OK economy at high speed. Replacing the fuel
pump assembly (and thus the regulator) fixed the economy issues.
The no start was a dirty IAC. The pintle was worn so I replaced the IAC
motor assembly when I cleaned the throttle body.
The gauge is an Actron/Sunpro unit picked up at Sears for $40.
Check out this car and a whole lot of other sweet LH cars on lhforums.net!
Looking at GM's Direct Injection Engine Technology
GM's direct injection engine technology increases fuel economy and power
while reducing emissions. Watch as Global Chief Engineer Chris Meagher
explains how it works and talks about how this technology will soon be in
ten percent of GM's vehicles worldwide.
How to replace an O2 Sensor and save money.
I show you how to replace your O2 Sensor. This is being performed on a 1997
Chevy Tahoe. Automotive oxygen sensors, colloquially known as O2 sensors,
make modern electronic fuel injection and emission control possible. They
determine if the air fuel ratio exiting a gas-combustion engine is rich
(with unburnt fuel vapor) or lean (with excess oxygen).