Our venerable ECU Monitor designed for use with 1986 - 18981 Digifant ECU Vanagons. Originally this device was made available for Van Cafe Santa Cruz customers to rent in order to troubleshoot their fuel injection problems back in 2006. There was som miuch interest, we decided to make it available in semi-kit form, where the user would simply need to solder 12 or so wires to their ECU circuit board, and plug the other end of that cable into the monitor. Nothing magic, but this device enables the user to troubleshoot ECU input and output signals, like they were using a digital voltmeter inside their ECU, from their front seat. Intermittent or fussy signals like temp sensor outputs, oxygen sensor voltages, and air flow meter feedback levels are easily monitored. We have made several upgrades to the 8691 since 2006, and it had discarded the 9V battery, added 5V filtering and common mode power to the digital meter, and a resettable fuse protects your vehicle and the monitor from excess current drain. We have sold hundreds of these over the past 17 years, both domestically, and internationally, and we rarely receive any units for warranty (or other) repairs.
MSRP $199.95

Our Hall Throttle Switch is a direct replacement for the stock VW TPS, currently at or near their end-of life cycle. Mechanical microswitches are quite durable, but normally 25 or more years is beyond their usual lifespan. The Hall technique is an established industry standard for sensor position signalling,

Two small permanent magnets mounted in a teflon magnet disc, activate the sensor at FULL THROTTLE and IDLE Air Throttle Butterfly positions, providing the same contact closure (or open) information to the ECU. A bright yellow LED illuminates at both limits also, and makes adjusting your TPS much easier. No more trying to hear the microswitch CLICK in a noisy Shop or Garage. We also include a 3mm T Handle Wrench that fits the TPS Adjustment Screw nicely.

MSRP $74.95

Our 8335 ECU Monitor is designed for use with the Digijet ECU, normally found on 1983 - 1985 1.9L Vanagons. The monitor itself is an 8691 Monitor, but we have added a solid state interface, that allows the same functionality as the 8691 for the older ECUs. The ribbon cable provided is also specifically designed for use in the 83-85 models, and is 18’ in length to reach the engine compartment mounted ECU.

MSRP $249.95

The Shoebox Electronix Shop ECU Monitor System is specifically designed for the professional Vanagon repair facility. Ready to go, out the box, NO assembly or soldering is required. Simply install the ECU in the vehicle under test, Connect the two provided ribbon cables to the ECU, and the monitor, and start the engine. A digital panel meter displays the analog voltage of ECU sensor inpur signals, e.g. O2 Sensor, Coolant Temp, Air Flow Meter, Intake air temp, O2 Sensor ground (quality), and the vehicle battery level. Panel LEDs indicate fuel pump ground, fuel injector, hall sender & coil pulses, and Throttle Switch position. Signals are displayed while running the engine in the shop, or while road testing the vehicle. This is especially valuable when ddiagnosing an intermittent problem, or those that only manifest at certain speeds or temperatures. Includes: Assembled & tested 8691 ECU Monitor, 12’ Ribbon Cable, Your ECU (we add cable & test), Troubleshooting Information, VW Tech Talk Video, Lifetime Warranty, Instructions & Documentation.

MSRP $299.95 (+ tax and shipping)

One of our current “WIP” projects, the 8691 Pro Monitor System is aimed at the professional VW Repair Shop. Planned features include: dual analog monitoring functions, battery condition meter, separate digital and analog meters, push button digital mode switching, 3” digital oscilloscope display for monitoring pulse signals, and more. We would like to finish our prototype design and testing sometime in early 2024, so stay tuned.

COVERED BY OUR 2 YEAR / 24 MONTH WARRANTY!

The 8591B Battery Saver Kit is supplied with an assembled and tested circuit board ready to install in your Vanagon. How many times have you forgotten to switch your headlight switch OFF when you left your Vanagon parked for an extended period, only to return to a dead battery? The "Bat Saver" will remind you to click that headlight switch OFF with a pulsing ten second audible alarm. After that it assumes that you want to leave the lights on for some reason, and shuts off. Convienient if you drive in with your lights on for safety reasons, rain, or fog, when the lights are difficult to see from outside your van. The board mounts just under the instrument cluster cover on your speedometer housing. Three wires, prepared with the necessary connectors are included, and connect the Battery Saver to your headlight switch and one ground screw, making the installation straight forward. The circuit is isolated from your wiring with two 5A FB fuses, and a 7805 regulator. All required connector, splices, and wires are included for you to install on all Vanagons. Detailed instructions cover both 1985 and 1986 - 91 models. Pick up one of these neat kits, and forget "Headlight Switch Headache".


8491B Battery Saver Alarm $49.95