AutoCodes – Generic – P1007

P1007 Code - Torque Difference Cylinder 4: Limit Value Exceeded

Quick Answer

The Engine Speed Sensor detects RPM and reference marks. Common causes include Low Engine Compression, Faulty Fuel Injector, Fuel Injector harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1007 indicates Torque Difference Cylinder 4: Limit Value Exceeded.
Common causes: Common causes include Low Engine Compression, Faulty Fuel Injector, Fuel Injector harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 15,659

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 17, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1007 Description

The Engine Speed Sensor detects RPM and reference marks. Without an engine speed signal, the engine will not start. If the engine speed signal fails while the engine is running, the engine will stall.

OBDII Code P1007 - Torque Difference Cylinder 4: Limit Value Exceeded - AutoCodes.com — P1007 Code - Torque Difference Cylinder 4: Limit Value Exceeded

What does this mean?

What are the Possible Causes of the DTC P1007?

Low Engine Compression
Faulty Fuel Injector
Fuel Injector harness is open or shorted
Fuel Injector circuit poor electrical connection
Faulty Engine Speed Sensor
Faulty Engine Control Module (ECM)

How to Fix the DTC P1007?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1007 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1007 code?

Need more information on how to fix the P1007 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1007 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1007 Buick — Fuel Pump Driver Control Module Ignition On/Start Switch Circuit High Voltage
P1007 Cadillac — Fuel Pump Driver Control Module Ignition On/Start Switch Circuit High Voltage
P1007 Chevrolet — Fuel Pump Driver Control Module Ignition On/Start Switch Circuit High Voltage
P1007 Dodge — Ignition Circuit Low
P1007 GMC — Fuel Pump Driver Control Module Ignition On/Start Switch Circuit High Voltage
P1007 Volkswagen — Torque Difference Cylinder 4: Limit Value Exceeded

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1007 Code

1. What are common symptoms of OBDII code P1007?

Symptoms of OBDII code P1007 may include rough idle, poor engine performance, decreased fuel efficiency, and in some cases, the Check Engine Light may illuminate.

2. What does the OBDII code P1007 "Torque Difference Cylinder 4: Limit Value Exceeded" mean?

OBDII code P1007 indicates that there is an excessive difference in torque output between cylinder 4 and the other cylinders in the engine.

3. What are possible causes of OBDII code P1007?

Possible causes of OBDII code P1007 include a faulty fuel injector, vacuum leak, ignition system issue, mechanical engine problem, or a problem with the cylinder 4 itself.

4. How do I diagnose the OBDII code P1007?

Diagnosing OBDII code P1007 typically involves checking the fuel injector for proper operation, inspecting the ignition system components, performing a compression test on cylinder 4, and checking for any vacuum leaks.

5. Can driving with OBDII code P1007 cause further damage?

Continuing to drive with OBDII code P1007 may potentially cause damage to other engine components and lead to further engine performance issues, so it is recommended to address the problem promptly.

6. How can I repair OBDII code P1007?

Repairing OBDII code P1007 may involve replacing a faulty fuel injector, addressing any vacuum leaks, repairing the ignition system, or performing necessary engine repairs on cylinder 4.

7. Is it safe to reset the Check Engine Light after fixing OBDII code P1007?

After fixing OBDII code P1007, it is safe to reset the Check Engine Light using an OBDII scanner to clear the diagnostic trouble codes stored in the vehicle's computer system.

8. Can OBDII code P1007 be a false alarm?

While rare, OBDII code P1007 can sometimes be triggered by a temporary issue or sensor glitch. It is recommended to verify the problem through proper diagnostic procedures before proceeding with repairs.

9. How urgent is it to address OBDII code P1007?

It is important to address OBDII code P1007 in a timely manner to prevent potential engine damage, ensure optimal performance, and avoid further complications down the road.

10. Will OBDII code P1007 cause my vehicle to fail emissions testing?

OBDII code P1007 can cause a vehicle to fail emissions testing due to increased emissions, poor engine performance, and potential issues with combustion efficiency. Addressing the code is necessary to pass emissions tests.