An EGR Diagnostic Isolator for 1988-1997 Ford trucks and Broncos with EEC-IV ECUs :
We are currently take pre-orders for the Twisted Smog Diagnostic Isolator. We are waiting on labels for the new product, and anticipate that we will be able to ship orders no later than the 20th of January.
** DOES NOT WORK WITH MASS AIR FLOW (MAF), FOR EEC-IV ECUs ONLY! **
These diagnostic isolators are designed to temporarily separate the SMOG, EGR, and corresponding vacuum sensors from the ECU so you can easily isolate a sensor issue.
If your EGR system is suffering from a sensor or component failure, your truck will run in the EEC-IV “limp mode” – resulting in horrible gas mileage or your truck running dangerously lean. This isolation tool will allow it to run without the SMOG and EGR temporarily, without going into the “limp mode”, so you can then safely isolate and identify where the problem is coming from. This will allow your ECU to run the engine solely off of the needed fuel injection sensors and components. This is for temporary use, and cannot be “installed” permanently in your vehicle.
Using the same approach as we take in our vintage stand-alone harnesses we are now able to do a full EGR, vacuum sensor and smog system isolation for 1988-1997 Ford trucks and Broncos. This unit isolates and partitions off the EGR sensors and components in a way that allows your engine to only run on the needed fuel-injection components. This allows the ECU and engine to operate temporarily without the EGR and SMOG components. Additionally, our tool kit includes the belt to bypass the SMOG pump allowing you to diagnose if the problem is coming from the SMOG pump itself.
You can then easily reconnect your vehicle for SMOG compliance.
** If you are needing to on isolate all of your SMOG tubing, purchase the SMOG pump tubing isolation hardware bundle option **
** Before you Buy : It is highly recommended that you fully read the instruction manual fully prior to purchasing to understand what this tool does, why it does it, and what the scope of the project is beforehand. **
Included with this kit :
- Twisted Smog Diagnostic Isolator
- EGR valve block off plate
- Serpentine belt needed to not turn the SMOG pump
- All connectors and mounting hardware
- Shipping + Handling Included
** Attention : If testing the SMOG pump itself is not needed, you can purchase the diagnostic tool without the belt. **