Feedback from some of our customers:


“Hey, man — that is great news! Now thinking ahead, will be getting the early ECU monitor as well, if this all works out with the 8691, and will plan to make a similar pass-through plug — but one thing at a time. REALLY appreciate your help!” CS, VoltZwagen, Novato, CA

“With the use of your Diagnostic tool I was able to get the Van tuned up where she is running and idling much better and not idling rich anymore (previous mechanic had screwed the idle mixture screw in all the way attempting to compensate for multiple vacuum leaks, and the tool was showing me a really high reading for the AFM). Thanks again for taking the painstaking task of static harness readings out of the equation!” WW, Woodard Rentals, Odessa TX

“I think we may have found the problem , a bad shielded wire in the engine harness going to the 02 sensor .Thank you.” JG, Ovals Motorsport, Milton, WA

“I will say, this 8691V ECU monitor is genius.  I use it every time I have a rough/poor running condition complaint on a customer Vanagon. It's been a life saver and there hasn't been a van yet I couldn't properly diagnose if it weren't for this monitor. Thank you again James and have a great weekend. Peace out 😁.” AK, German Auto Repair, Costa Mesa, CA

“Hey Jim, time to get moving on this haha. So you have a pre-86 ECU. I have a post-86 ECU. I think id rather just send it to you for the soldering as my soldering skills are terrible. Let me know your address to forward to and the total cost of the full system. Chat soon! Cheers!” RK, Vivid Vans, Duncan BC, Canada

"Hi Jim: Thanks for everything, up and running and working well. Thank you!" MK, Menlo Park, CA

"Hey Jim, Thanks for the shout out. That helped me alot." HS, email Referral

  "You've done more than stand behind your product. You took extra steps to rehabilitate my throttle body, and I really appreciate that. I love how Vanagon owners help other Vanagon owners. It's not easy keeping these relics rolling." MR, Piru, CA

 "Thanks again for such a great product. This really helped trouble shoot some very difficult problems on my van." DHM, Van Cafe Rental Customer

  "Thanks for your help." TD, Bend OR

  "I have used your ecu monitor with success on my Vanagon (from Vancafe), but now have a different application in mind". MH, Palo Alto, CA

 "ECU replaced. Car is now running again. Thanks for the help!" MS Orby, Sweden

 "Hi! Love the 8691 !! Super Simple - Perfect ! Helped me find out my Throttle Switch was not working. PS-This was a Xmas gift from my wife!" Dan S, San Jose, CA

  "Thanks again, this device is so useful, and has really helped me troubleshoot two big fuel injection issues in my van. I plan to permanently install it." DM, Redwood City, CA

 "I hope that the Digijet section on your website will grow up in the nearest future, because it's very helpful to me and many other guys from Poland with this engine. Thanks a lot!" PP, Torun, Poland

 "Great product! If you forget to turn off the lights, it seems like the alarm sounds for only about 10 seconds or so- and then goes off. I think this is a fantastic design, because it serves to remind you, but doesn't drone on annoyingly." GD (Santa Cruz High Class of 1990)

"Thank you for the prompt reply, have a Merry Christmas and Happy New Year. Cheers!" TW Victoria, Australia

 "Got the package the day after Christmas, but it was Christmas to me to have the "box"; popped it in and with new brain and Idle control module, the bus purred, thank you so much, the 8691 worked great and allowed easy tuning, and diagnosing."SS Amesbury MA

 " Your kit is very complete, and the directions are easy to follow." QH UC Davis CA

 Just received your 8691 monitor. Nice job on the packaging and completness of the kit." DS Van Cafe Customer

 "I really appreciate you getting back to me on my questions. It appears that you are open to contact (rare these days)." JL Vancouver WA

 "I rented the ECU Monitor from the Van Cafe that you built - what a great tool! I'd like to build that unit right into a permanent location." RW Sacramento CA

 "Thank you for all your help, it is much appreciated! TO Detroit MI

 "The indicator lights are performing per the book...and there are now no starting issues with my Vanagon." JP Van Cafe Customer

 "Thanks for keeping me up to date with your excellent progress, and let me know if there's anything I can do to help" ML Bristol UK

 "Nice talking to you this afternoon about the Digifant ECU! Thanks Jim!" BK San Luis Obispo CA

 "Thanks for making this kit (Battery Saver) - hope you sell a bunch of them. I don't know how many times I've walked back to my van to make sure I've turned my headlights off." SN Seattle WA

  “Thanks so much, Jim. I'll look forward to your work. It looks like you have made a significant contribution to the later models...maybe I'll get one of your kits when I get back to the states. Thanks also for posting this info, Jim. It helped me get my old '84 up and running here in Italy." BM Naples,Italy

  "I am currently renting one of your excellent diagnostic tools (ECU Monitor). It is working great!" MK Granville OH

  "Just found your site,what can I say!!! I've been looking for this info for years!! Thank you so much." CG Email from London UK

  I bought the ECU Monitor in kit form. Easy to put together. I will keep an eye on it, and learn how to use it correctly." ZT Van Cafe Customer

  I purchased your ECU Monitor and had no problem installing it." PN Carlsbad CA

  "I received a rental ECU Monitor last Friday, and installed Saturday. Very cool unit. Definately worth the price." Van Cafe Customer

 "Hello Jim, I got my ECU Monitor and have it hooked up. Was very easy to solder the wires - everything works. I think everyone that has a Waterboxer engine should have one!" WS Van Cafe Customer

 "I used the tool to diagnose a TPS that was not working properly and could only be diagnosed while driving the van." MP - Vancouver BC

 "Thank you for posting the manual." TF Anchorage AK

  "Really had fun watching the voltages from MA to NJ today!" LT Bedford MA

 "Can I buy extra pigtails to connect to the ECUs in my other vehicles?" DS Van Cafe Customer

 "I really can't say enough about this Digifant Monitor. It is just really cool!" JP Talahassie FL

 You can also inquire about the functionality and reliability of our products at the Van Cafe in Fort Collins, CO 970-310-3441, Mon-Fri 8:00 am - 5:00 pm MST