Parts for your 2011 Mitsubishi Lancer-Egr valve

2011 Mitsubishi Lancer EGR valve – is it fitted, and does it matter?

Based on factory literature and parts catalogues, an external EGR (exhaust gas recirculation) valve is not used on 2011 Mitsubishi Lancer petrol models sold in Australia and New Zealand. The common CJ-series petrol engines — 2.0L 4B11, 2.4L 4B12, and the 2.0L turbo 4B11T (Ralliart/Evo X) — rely on MIVEC variable valve timing, precise fuelling, and a three-way catalytic converter to manage NOx, so there’s no separate EGR valve to service or replace. By contrast, the 1.8 Di‑D diesel (4N13) offered primarily in Europe does have an EGR valve and cooler assembly.

Technical sources: Mitsubishi Lancer CJ Workshop Manual (Engine Control and Vacuum Routing sections) for 4B11/4B12/4B11T shows no EGR components listed or illustrated, the same manual’s 4N13 diesel section includes an EGR valve and EGR cooler. Mitsubishi ASA/ASA-CAPS parts catalogue lists EGR components only under the 4N13 diesel engine options. Autodata/AllData wiring and component location guides for 2011 AU/NZ petrol Lancer models show no EGR actuator or position sensor in the engine management system.

Why Mitsubishi skipped an EGR valve on the petrol Lancer comes down to the engine design. With MIVEC cam phasing, the engine can create “internal EGR” by overlapping valve timing, diluting the intake charge with residual exhaust gases without a separate valve and plumbing. That keeps emissions in check, simplifies hardware, and avoids the soot-related clogging headaches diesel EGR systems are known for.

What this means for owners: if it’s a 2011 Lancer petrol in Aus or NZ, chasing an EGR valve isn’t necessary because there isn’t one to fail. Rough idle, pinging, or a check engine light won’t be from a missing or faulty EGR valve. Instead, attention is better spent on items that actually affect these engines — throttle body cleanliness, PCV valve condition, intake leaks, MAF/MAP sensor accuracy, and up-to-date ECU calibration.

• Want to double-check? Petrol models won’t have an EGR cooler or valve assembly on the back of the head near the firewall. The European 1.8 Di‑D diesel will.
• Confirm the engine code on the build plate or rego/insurance paperwork: 4B11/4B12/4B11T = no external EGR, 4N13 diesel = EGR fitted.

FAQs

Do all 2011 Lancers have an EGR valve?
No. Petrol models in Australia and New Zealand (4B11, 4B12, 4B11T) don’t use an external EGR valve. The 1.8 Di‑D diesel (4N13), mainly sold in Europe, does have an EGR valve and cooler.

How can someone tell if their Lancer has an EGR valve without pulling it apart?
Check the engine code on the build plate or ownership docs. A quick visual check helps too: diesel cars have a metal EGR cooler and valve assembly at the rear of the engine bay near the firewall, petrol cars don’t.

What if a scan tool shows an EGR-related code on a petrol 2011 Lancer?
Generic scan tools sometimes label airflow or efficiency faults as EGR-related. On a petrol Lancer, look at MAF/MAP readings, vacuum leaks, PCV function, throttle body cleanliness, and software updates rather than hunting for a non-existent EGR valve.