Klondike Darol's AFR Circuits

Wideband • Narrowband
Diesel EFIE • Air Fuel Ratio Fuel Savers Circuits

WE HAVE PROVIDED ALL OF DAROL'S E-BOOKS ON HIS CIRCUITS
FORM THE LAST 17 YEARS OF HIS RESEARCH.

updated 12/14/2023

NarrowBand T-101 Air Fuel Ratio Control

WideBand T-101 Air Fuel Ratio Control

NarrowBand MAF/MAP (2 in 1 combo) AFR Control

WideBand Combo MAF/MAP (2 in 1 combo) AFR Control

GM V6 & V8 Frequency Based AFR Control ( discontinued)

DIESEL EFIE/AFR Control

All Install Instructions are below.

DAROL'S E•BOOKS - PDF's
DOWNLOAD & LEARN FILES

Oldie but Goodie .pdf files of info. written by Darol Mason
from D & N Engineering ( 2001 till 2012)

2.5 Volt Bias on Chrysler/Dodge O2 sensors

2012 Wide band Instructions

Darol's Cleansing Instructions

Bob Boyce™ Cleansing & Conditioning Instructions

Geroge Wisemen's Post

HHO Generators

Locate your O2 sensor signal wire

MAF / MAP Enhancer

Modified T-Stat on the T-101 AFR Control Center

Modified Tuning T-101 WideBand

OBD I Vehicles

Sensor Effects and Percentages

T-Stat NarrowBand Instructions

Tuning 101 Part 1

Tuning 101 Part 2

Tuning Tips

Darol's Volo Comparison

Hydrogen Garage's Volo Comparison

More of Hydrogen Garage Install Instructions.

E-mail us for Buddy's Fuel Vaporizor Instructions.

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Scanguage 3 • Scanguage 2 • AFR gauge monitor (Air/Fuel Ratio)
Scantool & monitor in one (clears engine codes)

Scangauge D (diesel, 6 & 9 round pin)

Air Fuel Ratio Monitor /MAF/MAP/CT & AIT temp/ RPM/ MPG
ECM Monitor Gauge • A must for these EFIE adjustments

Download the manuals for Darol's 2017 EFIE & MAP/MAP circuits :

2016 Modified T-101 / 2017 Wideband AFR

Modified Tuning 101 WB • WideBand Combo ( OBDI 1987-1995)

Tuning Tips 1 / Tuning Tips 2 / NarrowBand AFR 101

Update NarrowBand * NarrowBand Combo ( OBDI - 1987 to 1995)

Sensor Effect %'s / GM Freq. based / T-101 for GM Package

DIESEL EFIE / Locate O2 Sensor wire 

Automotive Terms Glossary

Hydrogen Garage Store

One out of 100 HHO cell systems worked!! says
HHO Skeptic CARB/EPA Dyno Lab Consultant. 3/12

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Hydrogen Garage • California • USA

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