The fuel system in your Honda Accord and Civic consists of many working parts. Here's why: If any one of the fuel injectors were shorted or open internally, the fuel injector would have registered a radically different resistance value on your multimeter. 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Honda City:  Bad Fuel Injectors → Symptoms and Causes, Honda CR-V:  Bad Fuel Injectors → Symptoms and Causes, Chevy Impala: Brake Lights Stuck On → Diagnosis. Testing your Civic’s fuel pressure on each side of the pump would be the best way to diagnose this problem. Terms of Use When this occurs they must be replaced. Alright, let's get started: Disconnect the fuel injectors from their harness connectors. That being said, bad fuel injectors are one of the more common issues that happen to any vehicle (Honda Civic included). If you don't have much troubleshooting experience, then I recommend starting from TEST 1. There are three separate tests in this tutorial and I've designed them with the DIY'er (Do It Yourself'er) in mind. Your next step is to go to the next page and see the troubleshooting guide here: How To Find The Bad Or Clogged Fuel Injector. This material may not be reproduced without the author’s consent. That’s why it’s important to check the fuel pressure at the rail before replacing injectors, otherwise you may end throwing good money after bad. WIRING DIAGRAM: The following wiring diagram may come in handy: Having worked on cars for a good part of my life, I can tell you that most fuel injector problems fall into one of two categories. Here are the most common types of fuel injector failures: With the help of this in-depth tutorial, you should be able to diagnose a bad fuel injector. Misfire codes (P0300, P0301, P0302, P0303, P0304) lighting up the check engine light (CEL). Tools  |   As you're probably already aware, each of your Honda engine's 4 cylinders need 3 things to produce power: fuel, spark, and air (compression). As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. Ford  |   How To Test The Fuel Injectors (1992-1995 1.5L Honda Civic), Checking The Injector's Internal Resistance, How To Find The Bad Or Clogged Fuel Injector, Cómo Probar Los Inyectores De Combustible (1992-1995 1.5L Civic). Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem! That’s why it’s important to check the fuel pressure at the rail before replacing injectors, otherwise you may end throwing good money after bad. Terms of Use All Rights Reserved. Measure the resistance of the fuel injector across its two male spade terminals with the multimeter test leads. If your Civic is experiencing the symptoms of bad fuel injectors, it would be wise to address the issue right away. The test steps below assume that you're testing all four fuel injectors. As you're probably already aware, each of your Honda engine's 4 cylinders need 3 things to produce power: fuel, spark, and air (compression).

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