How to Fix P1302 Injector High Sides Shorted Together

Introduction

If you’re experiencing the P1302 error code on your car, it means that there is a problem with the injector high sides being shorted together. This can cause a variety of issues, including poor fuel economy, reduced engine performance, and even engine damage if left untreated. Fortunately, fixing this problem is relatively straightforward and can be done with a few simple steps.

Step 1: Check the Wiring

The first step in fixing the P1302 error code is to check the wiring. Start by inspecting the wiring harness for any signs of damage or wear. Look for frayed wires, loose connections, or any other issues that could be causing the short. If you find any problems, repair or replace the affected wiring as needed.

Step 2: Check the Injector

If the wiring looks good, the next step is to check the injector itself. Start by disconnecting the injector from the wiring harness and checking the resistance across the injector terminals. The resistance should be within the manufacturer’s specifications. If it’s not, replace the injector.

Step 3: Check the PCM

If the wiring and injector both check out, the problem may be with the Powertrain Control Module (PCM). Start by checking the PCM for any signs of damage or corrosion. If everything looks good, use a scan tool to check for any error codes related to the PCM. If you find any, replace the PCM.

Step 4: Clear the Error Code

Once you’ve fixed the underlying problem, it’s time to clear the error code. Use a scan tool to clear the code from the car’s computer. This will reset the system and allow you to see if the problem has been fully resolved.

Step 5: Test Drive

Finally, take your car for a test drive to make sure everything is working properly. Pay attention to the engine performance, fuel economy, and any other issues that you may have been experiencing before. If everything looks good, you’re good to go!

Conclusion

Fixing the P1302 error code is relatively straightforward and can be done with a few simple steps. By checking the wiring, injector, and PCM, you can identify and fix the underlying problem, clear the error code, and get your car back to running smoothly.

FAQs

1. Can I drive my car with the P1302 error code?

It’s not recommended to drive your car with the P1302 error code. This can cause further damage to your engine and reduce your car’s performance and fuel economy.

2. How much does it cost to fix the P1302 error code?

The cost of fixing the P1302 error code will depend on the underlying problem. If it’s a simple wiring issue, it may only cost a few hundred dollars to fix. If it’s a more complex issue with the injector or PCM, it could cost upwards of $1,000.

3. Can I fix the P1302 error code myself?

If you have experience working on cars and the right tools, you may be able to fix the P1302 error code yourself. However, if you’re not comfortable working on cars or don’t have the right tools, it’s best to take your car to a professional mechanic.