P1167 Code: Meaning, Symptoms, Causes & Fix

Overview

Code P1167 indicates a fault in Invalid Test,throttle not depressed, typically within air metering and throttle control.

Symptoms

surging or unstable idle
engine feels underpowered
poor throttle response

Common causes

Electrical fault in the affected circuit affecting invalid test,throttle not depressed
Control module logic or calibration issue
Connector pin damage/corrosion or harness stress near related components

How to diagnose P1167

Confirm P1167 and capture freeze-frame data with a professional scan tool.
Inspect wiring, connectors, and grounds related to invalid test,throttle not depressed for obvious defects.
Use freeze-frame and live data to isolate whether the issue is electrical, mechanical, or control logic.
Check for related DTCs to identify the root-cause chain before replacing parts.
After repair, clear codes and confirm readiness monitors complete without recurrence.

Severity of code P1167

Low: This code is low to moderate severity in most cases, but diagnosis is still recommended to avoid recurring warnings.

Can you drive with P1167?

The vehicle is often drivable with P1167, but plan a repair window to prevent repeat faults.

If the warning lamp is flashing or drivability/safety is affected, avoid driving and diagnose immediately.

How to fix it (step-by-step)

Repair obvious wiring/connector faults first to prevent repeat parts replacement.
Address the root fault mode (generic) in the invalid test,throttle not depressed circuit/system.
Apply the required relearn/adaptation procedure if specified by service information.
Road-test and verify P1167 remains cleared under the conditions that originally set the code.

Fix options

Test component operation and replace if faulty.
Clear code and confirm through drive cycle.
Clear DTCs and verify with live data and completed drive cycle.

Typical repair cost

$100-$450

Common mistakes when diagnosing P1167

Replacing parts without verifying voltage, ground, and signal integrity first.
Ignoring related stored/pending codes that indicate upstream faults.
Skipping post-repair verification drive cycle and readiness checks.

P1167 in common vehicles

P1167 appears across makes such as Ford, Toyota, Honda, Chevrolet. Failure patterns differ by platform: wiring routes, software calibration, and component supplier revisions can change root cause.

Frequently asked questions

What causes P1167?

P1167 is commonly set by generic faults affecting invalid test,throttle not depressed.

How much does it cost to fix P1167?

For P1167, repair costs are typically $100-$450 depending on exact root cause, labor rates, and part quality.

Can I clear P1167 without repair?

You can clear P1167 temporarily, but the code usually returns until the underlying fault is corrected.