>
✔ 100% Money-Back Guarantee on Eligible Items
✔ Prices Displayed in Your Local Currency
✔ Final Price = No Surprise Import Fees
✔ Complimentary Insured Worldwide Shipping on Qualifying Orders
✔ Select Collector & Specialty Pieces May Require Secured Delivery Handling
by Mandy Concepcion (Author)
Automotive Sensor Testing and Operations
By Mandy Concepcion
This work has been a labor of love. It is meant to compliment and broaden the working knowledge of the modern automotive technician. No theoretical information is given, except under certain explanatory circumstances and sections. This book is totally based on actual working conditions and real life diagnostics. With that intent, special thanks are given to Mr. Gino Ferrulli for his incredible patience and understanding. This book, including waveform captures and photographs would have been impossible to acquire and assemble without his help. My gratitude to him and his family for putting up with me throughout the almost three years that took to make the book. Special thanks are also given to Ms. Maria Ferrulli and Ms. Caroline Torres for their invaluable help in amending and correcting the information contained here. I couldn't have done it without their help. And last, but not least, thanks to my family for their support and encouragement. I really needed it at times. The family is the basis for all societies. But most of all, this book was done for you, "The Lone Automotive Mechanic or Technician". The guy (or girl in some cases) who works all day long and studies at night to further his/her career in spite of the stress of the day, the guy who's not appreciated for what he does because to the rest of the world he's the dirty mechanic that doesn't know better, the guy who spends thousands of dollars in tools and equipment but that nobody has any idea that he did, and the guy who in spite of all the drawbacks of our profession is happy at what he does and keeps America rolling. This work was done for you. I hope you enjoy and learn from it. Remember, no matter what happens keep building your knowledge and it'll pay-off in the end.
Edition 4.0, Copyright 2004, 2021, All rights reserved
Table of Content
COMPONENT STRATEGIES (Sections 1) Section 1-1 (sensors) 1) O2 Sensor- O2 Sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures2) APP (accelerator Pedal Position Sensor)- APP, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures3) CAM & CRK sensor- CAM & CRK, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures4) ECT (Engine Coolant Temperature Sensor)- ECT, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures5) IAT (Intake Air Temperature Sensor)- IAT, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures6) Knock Sensor (Detonation) - Knock Sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures7) MAF (Mass Air Flow Sensor) - MAF, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures8) MAP (Manifold Air Pressure Sensor) - MAP, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures9) TPS (Throttle Position Sensor) - TPS, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures10) VSS (Vehicle Speed Sensor) - VSS, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures11) A/C Pressure Sensor - A/C Press. Sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures12) FRP (Fuel Rail Pressure Sensor) - FRP sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures13) PFS (Evap Purge Flow Sensor) - PFS, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures14) AFR (Air Fuel or Wide Range Air Fuel Sensors) - AFR sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures NOTES
Author Biography
Mandy Concepcion has worked in the automotive field for over 21 years. He holds a Degree in Applied Electronics Engineering as well as an ASE Master & L1 certification. For the past 16 years he has been exclusively involved in the diagnosis of all the different electronic systems found in today's vehicles. It is here where he draws extensive practical knowledge from his experience and hopes to convey it in his books. Mandy also designs and builds his own diagnostic equipment, DVD-Videos and repair software.
- In stock, ready to ship
- ✔ Authenticity Guaranteed — Verified Designer Goods
- ✔ Sourced from Authorized European/U.S. Luxury Distributors
- ✔ Secure Checkout — SSL Encrypted Payments
- ✔ Fast Global Delivery — 3–11 Business Days
- ✔ Easy Returns on Eligible Items
- ✔ 100% Money-Back Guarantee — Full Refund if Not Satisfied
AUTHENTICITY GUARANTEED
Reserved for you — complete your purchase to secure this piece.
OFFICIALLY AUTHORIZED RESELLER
Discover Officially Authorized Authentic Items at STORE7994.com - Certificates Available on Request!
Independently verified for store quality and customer safety.
Trust score: 91/100
All designer items offered by STORE 7994 are sourced from trusted luxury distributors and verified through independent authentication services.
Learn how STORE 7994 authenticates luxury items
Guaranteed Authentic — Includes Brand Documentation & Third-Party Verification Options.
Shipping information
- Free Shipping* on all orders over $300 USD to most countries* Estimated delivery: 2-5 business days Mon-Sat to U.S., CA, EU etc.
- Tracking available: DHL Express
- Store 7994 Shipping policy
- Global delivery in 3–9 business days (location dependent).
- Free Worldwide Shipping $300+. International duties & VAT are calculated by destination country and may be collected upon delivery. UK orders are subject to 20% import VAT upon delivery.
Our innovation isn’t just in the brands we carry — it’s in the way we connect them. From our automation engine that keeps collections globally updated to our commitment to authenticity-first presentation, STORE 7994 exists where timeless design meets modern precision.
Every product we offer is:
Elevated · Intentional · Exclusive · Authentic
STORE 7994 is an authorized reseller of luxury fashion houses. Certificates and proof of authenticity are available to brand owners and partners upon request.
Returns & Refunds
We want you to shop with confidence at STORE 7994. If your purchase does not meet expectations, eligible items may be returned under the conditions below.
Return Eligibility
Items must be unused, unworn, and in original condition with all tags, packaging, and accessories included. Items showing any signs of wear or damage will not be accepted.
Return Window
Return requests must be made within 14 days of delivery.
Return Shipping
Customers are responsible for return shipping costs unless the item is defective, damaged, or incorrect.
Luxury Items
Items valued over $1,000 may be subject to a 7% restocking fee upon approved return.
Non-Returnable Items
For hygiene and product integrity reasons, the following items are final sale once opened or used:
• Underwear
• Fragrances
• Any worn or used items
Made-to-Order Items
Custom-designed products, including STORE 7994 hoodies, are made exclusively for each customer and are final sale. These items are not eligible for return or exchange unless defective or incorrect.
If you receive a defective or incorrect item, please contact us and we will make it right.
International Shipping & Duties
Many of our products ship directly from trusted international partners. Any applicable customs duties or import taxes are calculated at checkout and are non-refundable, even if the item is returned.
Returns & Associated Fees
All approved returns are subject to a $24 return processing fee. For international orders, duties, taxes, and return fees will be deducted from the original payment.
Shipping Policy
Complimentary shipping is offered on orders over $300. Orders below this threshold are subject to standard shipping rates at checkout.
