There are two models: The basic 2Y1 ($99.00) gives you all 2Y features as
described here, except there is no on-board logging memory; however, logging may
be done in real time by an external PC.
The 2Y1M ($124.95) includes a 1MB logger module (with non-volatile memory).
That allows you to log without an external PC.
The external PC may download the contents of logger memory (for
display and analysis) later on.
The 2Y kit series, introduced in February 2008,
offers you economical Tech Edge wideband units in
Do-It-Yourself form. Like all Tech Edge wideband units,
the 2Y series
drives the sensor correctly, giving you the longest possible sensor life.
Easy to assemble, with some pre-built and tested modules, 2Y units have 100%
professional appearance and performance.
The primary output is that the RS232 interface produces a continuous stream of
high-accuracy logging frames for feeding
to a Tech Edge display or an external PC.
There are also three analog outputs: WBlin (Lambda/AFR), SVout
and NBsim. Inputs include:
RPM input, 3 general-purpose analog inputs (0-5 Volt) and 3 high-gain inputs
(for thermocouples).
Both the 2Y1 and the 2Y1M are DIY kits.
Tech Edge does not offer the 2Y series in pre-built and tested form.
If you want a low-cost unit but don't want to build it yourself, then please
look at the 2J controller.
Buy the 2Y DIY Kit, Cable, Connector, Display and Sensor
Please note, a 2Y unit also needs a Controller-to-Sensor
cable (pre-built or DIY kit) and a sensor.
DIY cable kits include the circular 8-pin connector (where the cable plugs into
the 2Y unit) but do not include the harness connector (where the
cable plugs into the sensor).
The harness connector varies with the sensor.
Select a harness connector kit to match your preferred sensor (Bosch LSU 4.9 is recommended).
Bosch models 7057 and 7200 have the same connector.
Likewise, models 17025 and 17123 have the same connector.
Model 17123 has a 0.4m cable, and model 17025 has a 0.9m cable (see picture below).
A Tech Edge display (pre-built or DIY kit) is also highly recommended.
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| DIY 2Y1 kit | DIY Cable | Harness connector kit | DIY Display | with Sensor |
Total price of selected item(s) : quantity : ...
Pre-Built Modules Simplify AssemblyA feature of the 2Y controller is the use of a pre-built lambda module. The module is constructed with SMD (Surface Mount Devices) components and comes factory tested. It makes construction simpler and the chance of success much higher than the original DIY 2A0. )
The SMD lambda module is readily replaced but our experience with SMD construction suggests that this will be the last item to cause problems. The lambda module includes a 2-position jumper to select either the Bosch LSU or NTK families of wideband sensors (the firmware must be changed if the sensor family is changed). Please note that there is presently no firmware available for NTK sensors, but such firmware could be made available, should there be sufficient market demand. Another 2-position jumper selects between LSU 4.2 (which includes the LSU 4.0 sensor) and the newer LSU 4.9 sensors. Again, the firmware must be changed. )
The jumpers are located on the underneath of the lambda module. The lambda module is unplugged, by unscrewing two M3 screws, to change the position of these jumpers. The image at right is the optional logger module which holds 1 megabyte of non-volatile flash memory — enough for many minutes of logging at high log rates. The logger module includes an onboard activity LED to aid in quickly identifying problems. Faulty modules can be swapped for a factory replacement without sending the entire 2Y unit in for repair. Click on the image to enlarge it. |
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Easy to Assemble, Fewer ComponentsHere are two more views of the unit showing the pre-built lambda module and the place for the logger module connector (on the main PCB, at lower right of the lambda module, on the illustration at left). There is a label, logger module on the main PCB. The unpopulated area at one end of the main PCB is for a display option that is now unable to be offered in the 2Y series. Note the lower component count compared with the 2A0 (image). )
The 2Y kits come (optionally) with DIY cable kits. The current cable kits are lower cost and better quality than older cable kits — they use a one-piece cable we have especially manufactured for us. A correctly-built cable will greatly enhance the durability and reliability of your 2Y unit. This is backed up by our finding that up to 80 percent of problems with DIY kits was due to problems with the cable. |
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2Y User ManualGo here for the 2Y User Manual page. At right is shown the 2Y1 with the pre-built lambda module removed. The enlarged image (click the image) clearly shows the components under the module. Note the two nylon standoffs that hold two corners of the lambda module. Equally notable is the relatively small number of components visible in this image of an assembled 2Y1 main PCB in its case. The logger module is not installed, but the position for its connector is clearly visible. |
We update 2Y documentation from time-to-time in response to your feedback (see footer below).