Description
Due to current tariffs affecting production cost, prices will be raised accordingly.
NOTE: This IS NOT the clock panel version and will not fit in the dash panel.
Older Demo Video here:Â https://www.youtube.com/watch?v=OFOATa6HGx4
Compatible Models:
- 86-90 2.5L TBI Renix Engines
- 87-90 4.0L MPFI Renix Engines
- 86-90 AW-4 Auto Transmissions
- 89-90 Bendix ABS Systems (Requires extra pin added to Diagnostic Adapter)
Have a 1986-1990 2.5L or 1987-1990 4.0L Jeep with Renix EFI and 15 pin Diagnostic Port? Old Jeepers unite, the REM is here for your diagnostic needs!
The REM is a Plug-and-Play homebrew scantool decked out with the latest tech to read in your Renix Jeeps Engine and Transmission computers’ data for a wealth of information on all the various sensors and readings throughout! A Check Engine Light has been added to alert of possible sensor issues or failures. By combining Transmission and Engine data you can even keep an eye on fuel economy! With included USB port or Micro SD card slot, data logging will be available to diagnose troublesome issues off vehicle as well.
But I couldn’t just stop there; this Open Source and Mod Friendly device is fully compatible with Arduino and includes a wealth of bonus features like a 3 Ch Fan Relay Controller, Analog Voltage and Resistance Reading, and a Signal Generator for low level piggyback engine tuning! A lot of new features and software are constantly being developed to create the ultimate car-puter device for your old Jeep!
Features:
– Now printed in ASA Carbon Fiber for higher heat resistance!
– Portable Plug-&-Play Scan Tool that can be used anywhere!
– Shows Live Engine Data and Reports basic sensor faults
– Shows Live Transmission Data and TCU Error Codes
– Check Engine Light alerts when faults are detected
– Auto-dimming RGB LCD Screen can display 4 readings at once
– Helpful diagnostic tips and Description booklet included
– Built-in 3 channel Fan Relay controller for running custom setups
– Micro SD Slot for future datalogging
– USB C port for datalogging and software updates
Upgrades:
– Bluetooth Module: Remotely monitor live data on an older android phone with XJBlueTalk App (Check if you can still download this as it is not compatible with newer Android OS security requirements)
– Bonus Mod Jack: Adds a 6-pin jack and pigtail to the REM to access additional modding capability. This gives access to a fused 5v Rail, Ground, 2x 5v analog inputs, 1x low current relay driver, and alternate DAC signal out hookup. This would be useful for interfacing with in-vehicle things like custom gauges(wideband or other), custom sensors(fuel pressure or other), or turn things on or off(Like a dash light or small relay.)
In the box:
– REM II+ Scan Tool
– REM to Renix Diagnostic Adapter
– 10′ Ethernet Cord
– Velcro
– Quick Start Manual
Richard Saunders (verified owner) –
This is an absolute MUST have if you have a Renix Jeep engine. I purchased a 1989 Jeep Comanche with a 4.0 Renix system engine with several fuel and electrical issues that I couldn’t isolate until I purchased this monitor. It isolated the problems and I now have my Manche purring! I have it mounted to my dash with Velcro and use it as a continuous monitor, wouldn’t want to be without it. It is a great money and time saver. Thanks, Nick.
Travis Schoen (verified owner) –
Best thing ever. Has helped me diagnose issues without having to pull out my multimeter and backprobe wires until I figure out what is wrong. It is great to see my fuel trim, knock sensor, and ignition timing in real time and the fault monitor has saved me by showing me potential problems creeping up before the parts themselves fail. Am looking forward to an in dash model someday, and will buy that when it arrives as well.
Rick Widebrook (verified owner) –
Review for Renix Engine Monitor II + (V5.2)
★ ★ ★ ★ ★
Josh (verified owner) –
Review for Renix Engine Monitor II + (V5.2)
★ ★ ★ ★ ★
Johnny Peters (verified owner) –
Review for Renix Engine Monitor II + (V5.2)
★ ★ ★ ★ ★
Billy (verified owner) –
Review for Renix Engine Monitor II + (V5.3)
★ ★ ★ ★ ★
Justin Poley (verified owner) –
My 2nd REM unit! I had one prior on my first comanche that I loved so I had to have another. Has been a huge help with fixing this old neglected truck.
Ben (verified owner) –
My 1989 Jeep Cherokee, wouldn’t be alive without it. In addition to 15 year service interval things, a handful of esoteric sensor and vacuum issues began plaguing it –all within a week. Using the various monitor readings and diagnostic tools at a repair shop, we were able to resolve over 7 faults one by one. Now it passes smog and gets 20mpg on the highway again!
Christian Piccolo –
Hello Nick,
My name is Christian Piccolo and I am writing to you from Italy.
I own a 1989 Jeep Cherokee XJ 4.0 Limited Renix (VIN: 1JEST785EKT555309). I have attached a copy of my registration document so you can identify the vehicle correctly.
I hope you don’t mind me writing such a long message, but after discovering your work I felt that you are probably one of the few people who truly understand these old Renix Jeeps.
When I bought this Cherokee, I thought I was simply buying an old 4×4. Instead, it became a major part of my life.
Unfortunately, after the purchase I discovered many hidden mechanical problems and I have spent a significant amount of time and money rebuilding and saving the vehicle. The engine has recently undergone major work and restoration, and my goal is not to sell it but to keep it for at least another 10–15 years.
I often joke that this Jeep has become more expensive than a new economy car, but I still love it and I want to do things properly.
Recently I discovered your Renix Engine Monitor II+, and honestly, it feels like you have given a voice to the XJ’s heart and soul.
Here in Italy it is becoming increasingly difficult to find technicians who truly understand the Renix system. Most mechanics can work on modern vehicles, but very few know how to properly diagnose these older electronic systems.
For this reason, I am extremely interested in purchasing one of your units.
I would like to ask:
• Is the REM II+ fully compatible with my 1989 Cherokee XJ Renix?
• Based on the attached registration document and VIN, do you see any compatibility concerns?
• Which version would you personally recommend today?
• If available, I would prefer the most complete package you offer, including Bluetooth and any options that you consider worthwhile for a long-term Renix owner.
• Is the unit supplied fully updated and tested before shipment?
• Can it remain permanently installed in the vehicle?
• How difficult is installation for someone with normal mechanical skills?
• What would be the total cost shipped to Italy?
Since I am already investing heavily in keeping this Jeep alive, I also wanted to ask something a little more personal.
If there is any possibility of an enthusiast discount, I would be incredibly grateful. I completely respect the value of your work and I am not looking for something for free. I am simply a Jeep enthusiast trying to keep a 1989 Renix Cherokee alive on the other side of the world.
In addition to the monitor itself, I was hoping to ask for your opinion on a problem I am currently facing.
The engine cranks normally but does not start. After repeated attempts there is a strong smell of fuel. Following multiple starting attempts I began hearing popcorn-like clicking and ticking noises from the upper part of the engine near the valve cover area.
The Jeep previously suffered from ignition-related issues and I have been investigating components such as the ignition coil, ignition module, distributor, rotor and related Renix electronics.
Given your experience with these systems, does this symptom sound familiar to you?
Have you seen similar cases in the Renix community?
Even a general opinion would be greatly appreciated.
There is one more topic that has become a real battle here in Italy.
I am currently trying to legally regularize the vehicle and replace the current tires with BFGoodrich KO3 31×10.50 R15 tires. The process here is extremely bureaucratic and complicated. I am not asking for legal advice, of course, but if you have ever encountered Cherokee XJs running 31×10.50 R15 tires or have any technical information regarding wheel and tire compatibility on XJs, I would be very interested in hearing your thoughts.
Sometimes I wish you were here in Italy rather than across the ocean. It feels like people who truly understand these Jeeps are becoming very rare.
Thank you for taking the time to read this message.
More than anything, I hope to become one of your customers and finally have the right tool to understand exactly what my Renix system is doing.
Thank you for everything you have done for the Renix community and for helping keep these old Cherokee XJs alive.
I look forward to hearing from you.
Best regards,
Christian Piccolo