Renault 148e22 =link= Jun 2026

While the code mentions the turbocharger or pressure offset, the physical culprit on Renault engines is almost always a minor mechanical failure rather than a broken, expensive turbocharger. 1. Cracked or Ruptured EGR Sensor Rubber Hose (Most Common)

Clio 5 (1.0 TCe) or Master, often appearing alongside other turbo-related codes like Boost Pressure Leaks:

Loose or damaged wires in the sensor circuit. How to Diagnose and Fix the 148E22 Code

When this error triggers, it means the Engine Control Unit (ECU) has detected a massive discrepancy between what the boost/exhaust pressure should be and what the sensors are actually reporting. Because the turbocharger behavior is tightly interwoven with the Exhaust Gas Recirculation (EGR) system to meet strict emissions standards, a failure in one system immediately triggers fault codes in the other. Common Companion Codes renault 148e22

In the Renault-Nissan-Mitsubishi diagnostic ecosystem, . The code explicitly points to a "Supercharging Function" (Fonction de Suralimentation) signal amplitude error, meaning the Engine Control Unit (ECU) has detected an invalid or erratic signal from the turbocharger boost circuit.

Body-specific parts (dashboard plastics, specific glass, grille trims) are now obsolete. You will need to find a breaker yard (scrapyard) specializing in Renault Midliners. Cab mounts and rubber bushings are also difficult to source new.

Demystifying the Renault 148E22 Fault Code: Causes, Symptoms, and Expert Fixes While the code mentions the turbocharger or pressure

Mechanical degradation inside the turbocharger assembly itself is a common root cause. For instance, fragments from a deteriorating Exhaust Gas Recirculation (EGR) cooler or carbon deposits can break loose, travel down the line, and physically jam or bend the turbocharger impeller wheels. When the turbocharger cannot physically rotate at commanded speeds, the airflow mismatch triggers the code. 4. Wiring Harness and Connector Corruption 1.5 dCi Renault Clio 2011 Boost Problem SOLVED (Easy Fix)

Rarely does 148E22 appear by itself. When diagnosing your vehicle via multi-brand scanners (like Launch, Autel) or Renault-specific software (CLIP), it is highly common to see it alongside:

The most frequent culprit for this specific code is a failure in the small rubber tube connecting the EGR pressure sensor to the exhaust system. The Problem How to Diagnose and Fix the 148E22 Code

The sensor is located in a notoriously tight space between the back of the engine block and the cabin firewall.

Contamination from oily soot can cover the sensitive tip of the MAP sensor or the turbo boost pressure sensor. This causes slow sensor response times or incorrect voltage outputs back to the engine computer. Step-by-Step Diagnostic & Repair Guide