AutoFixDB - Free OBD-II diagnostic trouble code lookup. Find causes, symptoms, diagnostic steps and repair solutions.

Overview

OBD‑II code P007A indicates a detected malfunction in the Bank 1 charge air cooler (intercooler) temperature sensor circuit, often due to sensor or wiring faults, potentially impacting turbocharged engine performance.

Common Symptoms

Check engine light illuminated
Reduced engine power/performance
Poor fuel economy
Rough idling or hesitation under boost
Vehicle may enter limp mode

Most Common Causes

Faulty charge air cooler temperature sensor high

Sensor internal failure or inaccurate resistance/voltage signal

Damaged or open/shorted wiring or connectors high

Circuit continuity issues or corrosion leading to incorrect sensor signals

Loose or corroded electrical connections medium

Poor contact at sensor or PCM harness can mimic sensor failure

Failed PCM or control module malfunction low

Rare but possible if all wiring and sensor test good

Diagnostic Steps

Connect a professional OBD‑II scan tool and confirm the presence of P007A; record live data for the charge air cooler temperature sensor

Expected: Sensor reading should appear and change with engine temperature

Interpretation: If reading is erratic or absent, proceed to visual inspection
Perform a visual inspection of the sensor, wiring harness, and connectors for damage, loose connections, or corrosion

Expected: Wiring and connectors intact with no visible faults

Interpretation: If damage found, repair or replace as necessary and retest
Use a multimeter to check reference voltage (typically 5V) and ground at the sensor circuit

Expected: Stable 5V reference and good ground continuity

Interpretation: Missing reference or ground indicates wiring/PCM issue
Measure sensor resistance across terminals with engine cold and warm

Expected: Resistance should decrease smoothly with rising temperature

Interpretation: No change indicates faulty sensor
After repairs, clear the code and perform a test drive to verify resolution

Expected: Code does not return on subsequent scans

Interpretation: Resolved issue; if code returns, repeat diagnostics

Repair Solutions

Replace the charge air cooler temperature sensor medium

Estimated Cost: $80 - $250

Part cost varies by make/model; labor depend on sensor accessibility

Repair or replace damaged wiring/connectors medium

Estimated Cost: $50 - $150

Cost influenced by location and extent of wiring repair

Replace PCM (rare) hard

Estimated Cost: $500 - $1200

Only after confirming wiring and sensor tests are within spec

Common Misdiagnoses

Avoid these common diagnostic mistakes:

Incorrectly diagnosing intake air temperature sensor or ambient air sensor instead of charge air cooler sensor

Frequently Asked Questions

Can you explain the meaning of P007A?

Technically, the P007A code represents Charge Air Cooler Temperature Sensor Circuit Bank 1. It usually points to a fault within the Air Intake.

Can P007A cause engine damage?

You should treat P007A as a medium issue. Illuminated check engine light with potential reduced engine performance and fuel economy; possible limp mode in some vehicles

What are the symptoms of P007A?

Common symptoms include: Check engine light illuminated, Reduced engine power/performance, Poor fuel economy. You might also notice the Check Engine Light is on.

Common triggers for the P007A error

Potential culprits include: Faulty charge air cooler temperature sensor, Damaged or open/shorted wiring or connectors, Loose or corroded electrical connections. A proper diagnosis is recommended.

Repair cost breakdown for P007A

Repair costs depend on the specific failure. A simple Repair or replace damaged wiring/connectors replacement is relatively affordable ($50-$150), whereas a Replace PCM (rare) repair is more expensive, potentially reaching $1200.

What cars are affected by the P007A code?

P007A is not specific to any one brand. It can appear on Ford, Dodge, Toyota, Honda, Jeep, and other vehicles.

P007A: Charge Air Cooler Temperature Sensor Circuit Bank 1