OKINJECTORS.COM
We are a full
service fuel injection shop. We
can ultrasonically clean, flow test and replace your fuel injectors'
internal filters so
they perform like new. This service is far less expensive that buying
new fuel injectors. We can also replace all the external o-rings,
spacers and if applicable, hoses.
There is no effective and complete on car test for fuel
injectors. Only
when they are off the car can they be properly evaluated. Many shops
will offer to perform a "balance check", however this only compares
each of the engine's cylinders against each other. It does not directly
compare the injectors. It will not reveal equally clogged injectors,
and it can only reveal problems at idle. Worse yet, because
individual variations in the cylinders are always present on an older
car, these variations often mask injector problems making the balance
check nearly worthless on older cars. The injector balance check is
vary usefull for finding a really bad injector on a nearly new engine,
which is what the dealers are usually looking for. I have instrutions
on how to perform a balance check in my Motronic tech article, a link
to it can be found near the bottom of this page.
We offer two
types of injector service.
Flow checking.
We check to make sure the injector's spray pattern and
flow rate are correct. We also check for internal and external leakage
as well as checking the injector's electronics. We include a flow sheet
when we return the injectors to you so you can see exactly how the
injectors performed. Pricing for flow
checking a set of injectors is $9.00 per injector plus the actual cost for
return shipping.
In
the picture below you can see the flow check results of a set of
injectors before cleaning. These injectors were out of a running
BMW 325i E30. It's amazing the car even ran. The flow check
results for this same set of injectors after our overhaul service can be
farther down on this page.
Full
overhaul. The full overhaul includes before and after
flow testing,
ultrasonic cleaning, new seals or o-rings as appropriate, new pintle
caps and new internal filters. This effectively makes the injector like
new. Injectors with our Level 3 service are guaranteed for 12 months. Pricing for a full overhaul is $22.00 per
injector when overhauled as a set. plus
the actual cost for return shipping. For hose on top style injectors
add $4 per injector if you want new hoses installed. Pricing to
overhaul an individual injector is $32.00
Additional service and charges: If
you
have an older injection system with hose on top style injectors we
have some extra services we offer. These charges can be easily avoided
by doing the extra work yourself if desired.
1. Removal of injector hoses, $6 per
injector.
2. Removal of
injector hoses from injectors and fuel rail, $10 per injector. This
actually
saves you a lot of work. If you want to send us your entire
fuel rail with the injectors and hoses in place it will add $60 to the
price of the work for a 6 cylinder engine, however we will send it back
assembled and ready to
go on the car. We will also test your fuel pressure regulator at no
extra charge. If you need us to provide the hoses and clamps the charge
is an additional $4 per injector.
3.
Fuel pressure regulator test $10. To do this we must have the
regulator, fuel rail and all injectors.
4. Repainting the injector bodies, $1 each.
This
is the same set of BMW 325i E30 injectors pictured above. As you can
see, our full overhaul service returned them to like new performance.
The
picture below shows an injector with part of the hose left on, and its
upper seal in place. Removing the
upper hose is a labor intensive operation, and I charge accordingly.
It's an extra $6 per injector.
Why use us for your injector service? There
are
quite a few places offering fuel injector cleaning and flow
checking. However there are a few factors that make us different. First of all we warranty all injectors we
service for 12 months period. If
it fails for any reason during that time send it back and we will
service it again at no charge, if we can't fix it you will be issued a
refund. Second, We use the
correct fluids for both the ultra sonic injector cleaning and flow
checking. These fluids cost about $20 a quart so most shops don't like
to use them. The correct fluids don't damage the injector's internal
seals. Incorrect fluids tend to damage the internal injector seals
leading to eventual external leaks, usually about 6-8 months later.
When you see really low prices on injector service, just do the math.
Do you really think someone is using $20 a quart fluid and charging $5
an injector for service? Third, we
flow
check your injectors at a variety of settings, not just at max
flow. We check them at idle, cruise, and full throttle from 1000rpm up
to 8000rpm. If there is a problem we will find it. We know the proper
injector durations for all these conditions and we check your injectors
accordingly. Most shops don't have any idea what the proper duration is
for a BMW 325i cruising at 2700 rpm. They may no how to use their
machines, but they often don't have the whole picture.
In summary, we will do the best, most complete job
possible, and we warranty our work.
Does your car even need injector service?
Good question!
Most
older cars do need injector service, but not always. Often problems are
caused by other components in the injection system. I have various tech
articles to help troubleshoot older Bosch fuel injection systems. They
are availabe for free. Simply click the follwing links:
For Early Bosch L-Jetronic systems
go either here: www.hiperformancestore.com/ljetronic.htm (Alfa Romeo
GTV6, Milano, BMW E12, early E24, E23, Datsun 280Z ZX, most 80's
Nissans, and a lot more), or www.hiperformancestore.com/ljetspider.htm
(Alfa Romeo Spider Specific)
For the
Bosch Motronic System go here:
www.hiperformancestore.com/motronic.htm (most 80's BMW from 1982 on,
various Porsches, etc.)
Fuel Injector in take cleaners:
These
items will often increase the problem. The fuel inejctor's internal
filter is so small, the holes in it are not visable to the naked eye.
No debris is getting through them. In tank fuel injector cleaners will
simply wash debris from the rest of the fuel system into these filter.
A
Bosch fuel injector and its internal filter are pictured below. No
debris can get past that filter, so they tend to clog up over time. In
tank fuel injector cleaners actually wash debris from the tank, and
fuel lines into this filter clogging the injector.
Once we recieve injectors our normal turnaround time is 24
hours. Same day service can be arranged if you call us.
Please
ship injectors to:
OKINJECTORS
10763 Sahoma Lake Rd.
Sapulpa OK
74066
(918)760-0668