PCM Reprogramming Services - I will reprogram PCM's to remove anti-theft
(VATS), disable rear oxygen
sensors and other emission related components, (off road right?) change fan on and off temps,
injector size, engine displacement etc. HoweverI won't be able to offer
custom tunes for modified engines. (aftermarket cam, boost, heads etc)$75 including
return USPS shipping to do this ($150 for
Gen IV Vortec). I will get you're PCM sent back out within one to
three business day after I receive it. Please remove any brackets. I
use USPS Priority Mail for all PCM shipping. Please
read to the bottom, there is a lot of important info I need to know to properly
program your PCM. Bottom of this page has shipping address and a
link to PayPal for payment.
I have gotten a lot of questions if I
was still doing programming, answer is YES, I have not stopped doing
programming, nor do I plan to at all. This is my full time job. LT1SWAP.COM was
created in 2002. 15 years later I'm still here! Thanks, Brendan -
7/22/2017 - The work coming in the door takes top priority, followed
by email/phone calls.
**** If you have a spare wiring harness or PCM, I
might work out a trade with you for programming, contact me ****
I can perform custom programming for the following Vehicles:
$75.00 for most of those Listed, INCLUDES return
Factory Flash Programming with latest GM Software for any
1996+ GM PCM or TCM email for details....
BASIC INFORMATION NEEDED FOR REPROGRAM
Engine Type & Year: Please let me know if PCM does
not match the engine exactly. GM used different injector sizes, fuel rail
types etc across engine's and years. It's important for best performance
to know exactly what the engine is. Also, if you plan to swap
intakes from another engine (LS1 intake on a 5.3L vortec) I NEED TO KNOW THIS.
Supplying an 8 digit injector number found on side of each injector will always
help insure correct flow rate is programmed into the PCM.
4.8/5.3/6.0 LS Enignes: Is your fuel rail a
returnless type, (using corvette regulator) or does it have a vacuum
referenced fuel pressure regulator? What is the injector part# for 99-14
4.8/5.3/6.0 see here for details...
4.8/5.3/6.0 LS Engines: Is your throttle electronic? (DBW
- Drive By Wire) or is it mechanical (DBC - Drive By Cable)
Transmission Type & Year: I can
disable automatic trans diagnostics if you wish to use a TH350, TH400, 700R4 ect.
Please read on below for info about the Vehicle Speed Sensor (VSS) Also
please let me know if you will run a MANUAL transmission, this is to ensure
proper idle control. Some engine / trans combinations were not offered
from GM every year. If your setup is a combination never offered from GM, some
additional local tuning maybe required to get everything "just right" for idle
behavior with manual trans. A good example would be a drive by cable 2003+ truck
engine with manual trans.
Rear Axle Ratio: see info below for 'Tire Size or Height'
Tire Size or Height When using electronic transmission,
this info is only needed if you need a calibrated speed sensor signal output to
run a stock type speedometer. I can program the PCM in most cases to
output the proper speed signal to use the stock speedometer in 88+ GM Trucks,
Jeeps, etc, about anything with electronic speedo from factory. Most of
the aftermarket speedometers are programmable, and the output from the PCM does
not need to be exact.
Remove Emissions? (this includes EGR, AIR
Injection, EVAP System, Rear Oxygen Sensors on 1996+) You may choose to keep EGR
but remove the rest. Let me know and I can keep what you want.
Typically If you say remove emissions, I remove them all. Keep in mind, I
only disable the diagnostic test the PCM performs on these components. If you
keep them hooked up, they will still function, with exception to EGR. EGR
operation changes ignition timing, so If I disable it, it will not function at
Remove Computer Controlled A/C? (this is to delete the
computer controlled a/c functions. If you have aftermarket A/C unit, or
using original A/C wiring from you're vehicle, you do not need the computer
controlled A/C. If you wish to use computer controlled A/C, all sensors,
switches, etc from the vehicle the engine came out of will have to be used.
Also, you do not need an A/C idle up, the engine will detect the load on the
engine and adjust idle controller to maintain idle speed.)
Is this an Engine Swap, or original Engine/Vehicle. (some
things I disable in the computer has to do with the PCM communication with other
devices in the original vehicle. If PCM is staying in original vehicle,
its important I know this.)
Mass Air Flow Sensors (MAF canbe
removed from most vehicles if required, however I recommend using it if at all
possible to improve drivability) LT1 vehicles had two different size mass
airflow sensors. The Caprice and Camaro units are different size. Also
98-02 Camaro/Trans Am LS1 used a 3 wire sensor. Truck 4.8,5.3,6.0 all used
a 5 wire sensor. Yet there is also a difference between Truck and VAN
4.8,5.3,6.0's. So if picking parts from different applications, keep this in
mind, and LET ME KNOW, programming is different for each type of mass airflow
Cooling Fan Controls I typically enable cooling fan
control with basic on/off points based on stock engine thermostat temps. It will
not hurt a thing to have the control there, but not used. If you use a lower
then stock thermostat, let me know and I will adjust the temperatures
VSS - If using a non electronic trans, You should KEEP a vehicle speed sensor regardless of what
transmission type you use. The PCM needs to know if vehicle is moving.
Without the speed sensor, you can suffer from reduced fuel economy, reduced
power, and idle problems. There are a few options for speed sensors on the
transmissions with cable drive output. View this link at
Dakota Digital website. I have used Dakota Digital SEN-4160 with good
success. This is a 8000 pulse per mile sensor, that will allow cable
speedometer hookup. (SEN-4160 WILL NOT WORK WITH
DRIVE BY WIRE CRUISE CONTROL, You must retro-fit a higher pulse sensor if you
wish to use cruise control with drive by wire.) I can program most any PCM to accept any # of speed
pulses. (1996, 1997 Black Box Vortec PCM will not accept 8000 pulse input)
Also check out www.jagsthatrun.com for
other speed sensor options. (Must output a SINE wave signal, or A/C Voltage)
4X4 vehicles and ELECTRONIC
TRANSMISSIONS - It can get tricky with 4x4's and electronic
transmissions. GM applications with 4x4's always put the speed sensor on
the OUTPUT of the transfer case. Then there is a signal to the PCM to tell
it when you are in a LOW range, so it can adjust the shift points. (shift
points are based on MPH in all GM computers) If you use a LT1 engine, there IS
NOT an option for low range input, and some later LS, there IS NOT a wire input
to tell PCM its in low range. Some of theses used a data signal from a
transfercase control module to tell PCM its in low range. On these applications,
you must have speed sensor located between the transmission and
the transfer case.There are aftermarket companies that offer an
adaptor that fits the sensor in this location.Anytime you use an
electronic transmissions, must keep 40 pulse per driveshaft revolution.
you have a TH350, TH400, or manual transmission, 4x4 or not, then it really doesn't matter
where the speed sensor is located or the # of pulses, just so PCM knows vehicle is moving, as
stated above. Check Novak Conversions
for information on adapting transfer cases to 4L60E and other transmissions.
These adaptorsinclude a speed sensor. Keep in mind I need to know
# of pulses and tire size/gear ratio when programming.
Email is by far the best way to contact me, it gives me a
record of conversations so I can better assist with you're needs. However,
email does stack up time to time, and I simply can not answer all technical
support emails. Phone calls go to my shop where I am usually at between
9am and 4pm central time unless on a service call in town. If I'm at the phone
If you live in Canada and plan to ship a
PCM to me via UPS or FedEx Ground Service, DO NOT put a value over $200 on the
item, or there is an additional charge by border customs for ''high value item''
I will not accept shipments this method marked over $200 value. Does not
matter if marked as gift or for repair, this has to do with value of the item.
Also, from Canada, please no money orders from Canada, please use the ''Buy
Now'' button with Canada shipping option selected.
$75.00 includes return shipping for PCM programming.
Please include the return shipping address and phone number, email address,
INSIDE THE BOX. If the PayPal payment comes from a name different than what
is on the box, it makes it very difficult to identify who its from.. Below is a ''Buy Now'' button you can use to send
a PayPal payment to me, or you can include a money order with the PCM when you
send it. Expect 3 to 4 business day turn around time* (up to 5
days possible right now due to high volume of work coming in). I ship with US
Postal Service Priority Mail with tracking. If you require delivery with another
service, please let me know. 1-2 Day USPS Express Mail shipping is available. It
may not be overnight to some zip codes. See the
dropdown box below.