People Say I'm Full of Crap About Fuel Additives, Well Watch This
Summary
TLDRIn this video, a mechanic with 46 years of experience explains how modern fuel injection cleaning systems work, emphasizing the inadequacy of old additives for today's vehicles. He highlights the challenges posed by ethanol-blended gasoline and direct injection systems, recommending Gumout for their polyether amine content. The mechanic also demonstrates diagnosing a 2007 Toyota Corolla's sluggish acceleration, ruling out common issues before suspecting a clogged catalytic converter. After testing, he finds the issue lies with dirty fuel injectors, which Gumout resolves after a short drive.
Takeaways
- 🚗 Modern fuel injectors and engines require specific cleaners that work with ethanol-based gasoline.
- 🔧 Old additives like seafoam, designed for two-stroke engines, are ineffective for modern vehicles with direct fuel injection.
- 💧 The main cleaning ingredient in Gumout is polyether amine (PEA), which effectively cleans engines, particularly gasoline direct injection systems.
- ⛽ Ethanol in gasoline can cause corrosion, but modern additives like Gumout have corrosion inhibitors to protect the engine.
- 👀 Using a boroscope to inspect engine carbon buildup before and after using cleaners helps verify their effectiveness.
- 🧪 Testing additives on modern cars with boroscopes shows that Gumout can significantly reduce carbon buildup.
- 🔋 Troubleshooting car performance often involves checking basics like the battery, alternator, air filters, and spark plugs.
- ⚙️ A clogged catalytic converter or lazy oxygen sensor can cause acceleration issues, and it's important to test components properly.
- 🔍 Advanced diagnostics tools like OTC scanners provide more detailed information than standard code readers.
- 🚙 Dirty fuel injectors can cause sluggish performance, but cleaning them with additives like Royal Purple can restore engine efficiency.
Q & A
Why do old fuel additives like Seafoam not work well with modern cars?
-Old additives like Seafoam were designed for two-stroke engines and do not work well with modern gasoline, which contains up to 10% ethanol. Additionally, they are not optimized for modern gasoline direct injection (GDI) systems, which can lead to carbon buildup in engines.
What is the primary cleaning ingredient in modern fuel additives like Gumout?
-The primary cleaning ingredient in Gumout is polyether amine (PEA), a nitrogen-based cleaner that is effective at cleaning carbon buildup inside engines, particularly those with gasoline direct injection systems.
How does ethanol in gasoline affect modern engines?
-Ethanol can cause corrosion in the fuel system and may negatively affect engine performance, leading to complaints about cars running poorly. Modern fuel additives contain corrosion inhibitors to prevent ethanol from damaging the fuel system.
What tool does the speaker recommend using to check the effectiveness of fuel system cleaners?
-The speaker recommends using a borescope to look inside the engine, allowing users to visually inspect carbon buildup before and after using fuel system cleaners.
What issue was found with the 2007 Toyota Corolla in the video?
-The 2007 Toyota Corolla experienced sluggish acceleration. Despite multiple trips to dealers, the problem remained unresolved. The speaker conducted various tests, including checking the battery, alternator, air filter, spark plugs, and running live data diagnostics.
What was the significance of testing the oxygen sensor in the Toyota Corolla?
-Testing the oxygen sensor was important to determine if there was too much pressure in the catalytic converter, which could indicate a clog. However, the test showed that the catalytic converter was not clogged.
What role did the MAF (mass air flow) sensor play in the diagnostics process?
-The MAF sensor was checked to see if it was reading correctly, as improper readings can cause acceleration and fuel trim issues. In the video, the MAF sensor was determined to be functioning properly.
What conclusion did the speaker come to regarding the fuel injectors in the Toyota Corolla?
-The speaker concluded that the fuel injectors were likely dirty and slightly clogged, causing the vehicle to run lean and affecting acceleration. After adding a fuel cleaner and test-driving the car, the long-term fuel trim improved, suggesting that the issue was related to dirty fuel injectors.
How did the speaker test for a clogged catalytic converter?
-The speaker tested for a clogged catalytic converter by removing the oxygen sensor and attaching a pressure gauge. If there had been significant pressure, it would have indicated a clogged catalytic converter, but the test showed almost no pressure, meaning the exhaust system was not restricted.
What was the final solution to the Toyota Corolla's sluggish acceleration problem?
-The final solution was likely related to dirty fuel injectors. After adding Royal Purple fuel cleaner and driving for about half an hour, the fuel trims improved, suggesting that the cleaner helped resolve the issue by cleaning the fuel injectors.
Outlines
🔧 Introduction to Modern Fuel Injection Cleaning Systems
The speaker explains how fuel injection cleaning systems have evolved over the years due to changes in gasoline and car technology. He highlights the inefficacy of older additives like Seafoam for modern vehicles, especially those with gasoline direct injection systems. Modern fuel cleaners, such as Gumout, contain polyether amine (PEA) as a nitrogen-based cleaner, which effectively removes carbon buildup and protects the engine from ethanol-related corrosion.
🚗 Diagnosing a Sluggish 2007 Toyota Corolla
The speaker discusses the issues with a sluggish 2007 Toyota Corolla and the steps taken to diagnose the problem. Despite previous efforts by dealerships, no solution was found. The speaker begins the diagnostic process by checking the battery, alternator, air filter, and spark plugs. After ruling out these components, he connects a scan tool, which reveals a failed engine immobilizer system, but this isn't believed to be the cause of the acceleration problem.
🛠 Deeper Analysis of the Toyota's Fuel and Sensor Data
Using a more advanced scan tool, the speaker examines the Toyota's fuel trims and spark advance. He identifies a discrepancy in the mass airflow sensor readings, leading him to suspect a clogged catalytic converter. After testing the catalytic converter's pressure and finding no issue, the speaker delves further into the live data from the fuel system, discovering potential issues with a lazy oxygen sensor and slight richness in fuel trim.
⛽ Cleaning the Fuel Injectors and Improving Performance
The speaker decides to address the vehicle's fuel injector issue by using Royal Purple fuel cleaner. After a half-hour test drive, the fuel trim improves significantly, indicating that the injectors were dirty and causing the sluggish performance. He concludes that dirty fuel injectors often cause hesitation in acceleration, offering a simple but effective solution.
Mindmap
Keywords
💡Fuel Injection Cleaning Systems
💡Ethanol
💡Gasoline Direct Injection
💡Seafoam
💡Polyether Amine (PEA)
💡Corrosion Inhibitors
💡Borescope
💡Mass Air Flow (MAF) Sensor
💡Catalytic Converter
💡Fuel Trim
Highlights
Modern gasoline contains up to 10% ethanol, affecting the effectiveness of older cleaners.
Many modern cars have gasoline direct injection systems leading to carbon buildup.
Old-fashioned additives like Seafoam are not as effective with modern ethanol-blended gasoline.
Napa and the pale oil in Seafoam are great for two-stroke motors but not modern cars with ethanol.
Polyether amine (PEA) is a nitrogen-based cleaner effective for modern engines with direct injection.
Gumout uses PEA to clean engine internals, especially where carbon buildup occurs.
Ethanol can corrode engine parts, but anti-corrosion inhibitors can prevent this damage.
Using a borescope to inspect engine cleanliness before and after using a cleaner.
A 2007 Toyota Corolla case study where dealerships couldn't diagnose the issue.
Checking the battery and alternator as they can create problems if not functioning correctly.
Inspecting the air filter and hoses for any issues that could affect engine performance.
Examining the spark plug for any signs of misfiring or poor engine performance.
Using a scan tool to read error codes and live data to diagnose the problem.
A failed engine immobilizer system code was found but was not the cause of the acceleration issue.
Fuel trim readings were inconsistent, suggesting a potential clog in the catalytic converter.
Testing the oxygen sensor for proper pressure to diagnose a potential catalytic converter clog.
The oxygen sensor test showed no pressure, indicating a free-flowing exhaust system.
Using a high-level scanner for more detailed diagnostics on the Toyota Corolla.
A new mass air flow sensor was tested, but the car still ran poorly.
Dirty fuel injectors were identified as a possible cause of the hesitation during acceleration.
Using Royal Purple fuel system cleaner to address the dirty fuel injectors.
A half-hour drive after using the cleaner showed improvement in fuel trim readings.
Transcripts
today I'm going to show you how modern
fuel injection cleaning systems work now
I've been working on cars for the last
46 years so I've seen a lot of changes
in both the cars and the gasoline that
goes in them so needless to say cleaners
that worked 45 years ago aren't going to
work that good today for two main
reasons first modern gasoline has up to
10% ethanol in it and second many modern
cars like this Volkswagen have gasoline
direct injection systems that often lead
to carbon buildup inside the engine now
if you're using an oldfashioned additive
like seafoam it doesn't have the
additives they're going to work with
alcohol and with gasoline direct
injection systems all that well it's
called seafoam for a reason that was
originally used for two-stroke outboard
motor engines but today even most
outboard motor engines are fourstroke
engines so if you want to keep your
engine and fuel system clean you need an
additive that can work with fourstroke
motors and with g gasoline that has
ethanol in it now the Napa and the pale
oil that's inside the seafoam works
great on two-stroke Motors they need oil
and the gas anyways to make them run but
if you're driving a modern car
especially if it has gasoline direct
injection and the fuel has a lot of
ethanol in it you need an additive
that's made just for that a modern car
with Modern Gas not an old motorboat
engine now the main cleaning ingredient
in a gum out is polyether amine or pea
it's a nitrogen-based cleaner when you
see those signs at the the Shell gas
station that say nitrogen power it's the
same stuff that they're using it'll
clean the inside of your engine really
well especially if you have a gasoline
direct injection where the carbon
buildup often occurs if you don't have
enough cleaner and it also has corrosion
Inhibitors so when you pour it in the
gas tank it keeps the ethanol and the
gasoline from corroding your system now
I've had a lot of complaints from my own
customers saying they hate that gasoline
that has ethanol because it makes our
cars run poorly it can actually corrode
stuff but if you have anti-corrosion
Inhibitors in it it won't hurt your car
now I know some people are going to say
hey why should I listen to that guy what
does he know what he's talking about
well actually I don't believe what most
people tell me either so you can do what
I do use the stuff and test it I use my
boroscope to look inside the engines
once you take a spark plug out to see if
the stuff's actually cleaning you don't
have to buy a real expensive one you can
get them for 80 or 90 bucks nowadays
they're all made in China just do like I
did take out a spark plug just put it in
a hole and look inside before you use
the cleaner then run two or three tank
FS full of gas with a can of this stuff
in and then check it out with a B scope
again to see if it's clean here's a
before picture with the Piston all
clogged up with carbon and here's the
later picture where you can see it's
much cleaner so if you're like me and
you want your car to last forever you
might try some of this gum out
multi-stem
cleaner now here's an oddball one we got
a 2007 Toyota Corolla and it doesn't run
right it accelerates very sluggish and
the weird thing is he took it the
various dealers and they all said they
can't find what's wrong with it so let's
see if they were screwing them around or
whe there's something that even I can't
figure out now theoretically it's had
spark plugs air filters everything I
don't I don't trust anybody but I'm
going to start by checking a battery and
alternator many problems can be created
by lack of power from the alternator or
battery so cheapest battery you can get
from AutoZone check the old battery
since it's not a very expensive one who
knows now says 520 cold cranking amp so
set it up for that in vehicle battery
post top post regular H cranking amp got
to put it way down to 520 and let's see
what it says good battery okay now we'll
check the alternator so start it
up that's working fine so we know it's
getting correct voltage to everything
now let's just take a general overview
of the engine make sure they weren't
lying about the air filter now that's
clean okay all the hoses are hooked up
there's no loose hoses anywhere that's
all on so we'll take the stupid Beauty
cover off everything looks pretty normal
so far so let's check out his spark plug
we'll take the number one out that's the
one in the front of the engine they
don't give you enough working room so
you got to pull the wire off and that's
always fun on these you got to squeeze
and pull there we go all right that's
out of the way now we get a spark plug
socket pull out the spark
plug and we'll examine it pretty much
normal color gray there's no so or
anything on it all we'll measure with
feeler gauges it's 44,000 of an inch if
the Gap was wrong it can run wrong but
it's gapped right and it's running fine
so there's nothing wrong with that so
we'll put this back together nothing
obvious showed wrong so we'll plug in
the scan tool see what it says it's
reading all the information now it knows
what it is so we'll do a network scan
this Baby's only got 118,000 that's not
much for a Toyota Corolla now it does
have one failed module let's see what it
is it has a Cod for failed engine
immobilizer system well that can't be
making the car not accelerate right
that's immobilized system that in the
key the chip in the key has to match the
computer if it doesn't the car will not
start it starts it just has no
acceleration so that's not the problem
so we'll switch over to live data in
this case you're better than a computer
the computer hasn't found any failure
but it doesn't accelerate right the
computer's only going to trip code
sometimes it has to go as much as 25%
plus or minus the normal data which hey
if it's 23% you can feel it running poor
but it won't trip any codes we're going
to start looking at the data short term
it's subtracting fuel but longterm it's
adding fuel it's odd cu the fuel trim is
kind of squirly let's try to figure out
why look at the spark Advance rub it up
a
little well that's working goes up when
you accelerate and goes back down when
you go back to idle taking a while to
get back down but that's cuz this I got
all this data and the data isn't going
to refresh fast enough this case the
math sensor 2.03 G per second how you
really want to test it is turn the AC
off put it and drive and see what it
does now it's idling it's saying 2.39 G
per second 2.34 this is a 1.8 L engine
it should be reading closer to 2 or 1.8
than 2.34 now one thing that can cause
loss of acceleration and weird fuel
trims it's a clog cataler converter so
we got to gauge we're going to take out
an oxygen sensor and see if it's got too
much pressure if it does the Catal
converter is starting to clog up now as
we look down conveniently there's an
oxygen sensor right here we got an
oxygen sensor socket and we're going to
remove it they're usually pretty stock
so I'm going to use a real Long Bar
extension bar to get it Loose there it
goes and we can unscrew it take the
socket off now put it up here we'll
unscrew it and you can see the sensor's
pretty new they tried a new sensor and
it didn't fix but did they test it I
don't know we're going to put in the
oxygen sensor tester then we'll tighten
the socket to make sure it's sealed
right you got to have it tight you won't
get a right pressure read now it's nice
and snug you can screw the gauge in and
now you can see the gaug is hooked up
and we'll start the car start it
up give it a few
revs and we see it has no pressure at
all now we'll rev it up and see if it
[Music]
changes as you can see the gauge moved a
little but it means nothing if you have
2 and 1 half three four 5 lbs pressure
the cat's clogged up but this stays
pretty much at almost no pressure at all
meaning the exhaust system is free and
it's not restricted so it's not there we
remove the gauge in the socket adapter
then I use my magnet to pull it out I
use the magnet so I don't burn my finger
so I'll blow into this
one and you can see it moves I blew in
it so the gauge is working fine so now
we're bringing out my big boy My OTC
highlevel scanner see if it gives us
more information we can use since the
math sensors already been changed and
then it's got a nip and denil one the
correct one for the car it's not that he
said he had the map sensor change made
no difference it still ran poorly let's
see what Bosch has to say we go to
Diagnostics Auto ID going to do all the
mode 9 data and mode 6 data it's a much
more specific machine so we get a lot
better information start it up and do
data stream since we're having problems
with the running we're going to do
engine transmission now we'll start with
all data items just to get a general
overview now as we look the longterm
fuel trim it's adding fuel so long term
it is running rich even though now the
short term it's actually subtracting a
tiny amount of fuel the ignition Advance
is 14 that's normal we'll rev It
Up goes back up and then we let go goes
back down you notice on the previous
scan tool took a while for the ignition
timing to go back down cuz it's a
cheaper tool this BOS one is much better
it refreshes quicker hence when we took
our foot off the gas it went back to
normal timing like it's supposed to fast
not the car that's doing it that was a
scan tool differential looking at the
rest of the stuff got to refresh the
screen now and we can see it idle it's
1.96 2 G per second that's normal at
idle now when we bring it up to about
2500 rpm in
neutral It should read about 7 G per
second we'll get it up to 2500 there it
is so it's reading right there I got it
down a little it's hard to keep it up
but that's working it's going up and
down like it should now that is a new
Toyota nip and Deno mass air flow sensor
but you can't trust anything tested it
that's work let's check the air fuel
sensor the monitor Sensor 2 Bank One
sensor two Bank One Sensor One all right
we're going to check that stuff as you
can see the one that we checked before
the air fuel sensor Bank One sensor one
that's has voltage but the Bank One
Sensor 2 it's not changing at all there
it is it goes zero it seems to be lazy
rev it up it's not moving like the other
one eventually does so we might have a
lazy oxygen sensor but let's go further
now looking at the fuel system we got a
long-term fuel trim it's adding so it's
running slightly lean now it shows no
misfires at all so this is a real
quandry it's running just slightly lean
I'm guessing the fuel injectors are just
kind of old and warm a lot of times you
can clean them going to try some of this
Royal Purple throw it in a gas tank and
see what happens got the nice funnel so
it fits right in so in this case the
funnel got stuck so you got to stick
your finger in and then pull it out well
isn't that just cats me out there there
it goes you can always wiggle them out
I'm start her up go for a good half hour
drive and we'll leave it in second gear
so it'll rev higher and burn quicker
we'll let a ticket about say 4,000 RPMs
for about half an hour of drive while we
driven around now house let's check the
fuel trim now and you can see the
long-term fuel trim has gone to
0.8% that means it's only adding a tiny
amount of fuel instead of about 5% it
was adding before so it's fixing it now
that was only a half hour drive as you
drive longer can even do a better job
dirty fuel injector seems to be one of
the biggest problems in this vehicle now
you know something as dumbass slightly
dirty fuel injectors that don't spray
enough fuel or don't make the perfect
conle shape can make your car hesitate
when you try to take
off so if you never want to miss another
one of my new car repair videos remember
to ring that Bell
[Music]
Посмотреть больше похожих видео
정비사를 괴롭히는 가장 어려운 고장
FUEL INJECTORS - How They Work | SCIENCE GARAGE
3 SIGNS THAT YOUR FUEL INJECTORS CLOGGED / STUCK OPEN OR GOING BAD (AUDI) OR ANY CAR
Chủ Máy Quá Hài Lòng Với Cách Lộc Sửa, Và Giải Thích Chi Tiết Tại Sao Máy Hư ?
🤬 BASTA😡 No encontramos lo que le pasa a Megancete [CANSADOS 😭 por NO llegar a una SOLUCIÓN]
BRANDGEFAHR am BILLIGSTEN 7er BMW! (schnell reagiert)
5.0 / 5 (0 votes)