Parts for your 1997 Mitsubishi Lancer-Map sensor

Does a 1997 Mitsubishi Lancer use a MAP sensor?

For most 1997 Mitsubishi Lancer models sold in Australia and New Zealand (CE series with 4G15 1.5L or 4G93 1.8L naturally aspirated engines), a MAP sensor isn’t used for engine load measurement. Instead, these cars run a Kármán‑vortex mass air flow (MAF) sensor mounted in the intake ahead of the throttle. This is documented in the Mitsubishi CE Lancer Workshop Manual (Group 13A – Engine Electrical/MPI, 1996–2003), which details the MAF-based control strategy and wiring without a manifold absolute pressure sensor on the NA engines. The Mitsubishi ASA electronic parts catalogue for CE/CK models likewise lists an air flow sensor but no MAP sensor for the non‑turbo variants, a separate pressure sensor only appears on turbocharged GSR/Evolution applications. Independent references such as Autodata and the Haynes/Gregory’s manuals for 1992–2005 Lancer/Mirage echo the MAF‑based setup.

Why no MAP sensor? The CE Lancer’s ECU measures real-time air mass via the MAF, then blends that with throttle position, intake air temperature and oxygen sensor feedback to manage fuel and ignition. That “mass‑air” approach makes a standalone manifold pressure sensor unnecessary on the naturally aspirated engines. Some models do have a barometric pressure input (often internal to the ECU) for altitude correction, which can confuse scan tools into reporting “MAP/BARO” data even though there’s no external MAP sensor under the bonnet.

There are exceptions: turbocharged GSR (4G93T) and Evolution models of the same era include a pressure sensor plumbed to the intake manifold to monitor boost and protect the engine. That unit is sometimes called a MAP or boost sensor, but it doesn’t apply to the common NA CE Lancer variants.

If someone’s chasing “MAP sensor” issues on a 1997 NA Lancer, the usual culprits are actually MAF‑related or vacuum/air leak problems. Good checks include:

• Clean the MAF with dedicated MAF cleaner (don’t touch the sensing element).
• Inspect the intake ducting for splits, loose clamps and perished PCV/vacuum hoses.
• Verify throttle position sensor adjustment and look for unmetered air after the MAF.
• Scan for MAF‑related codes (P0100–P0104) rather than MAP codes.

If your 1997 Lancer is a turbo GSR/Evo, that’s a different kettle of fish—there will be a pressure sensor on the firewall or strut tower with a small vacuum hose to the manifold, and it should be checked for cracked hoses and reliable 5V supply/ground.

Popular questions about 1997 Mitsubishi Lancer MAP sensors

Where is the MAP sensor on a 1997 Mitsubishi Lancer?
On the common CE‑series non‑turbo Lancer in Australia and New Zealand, there isn’t a MAP sensor. The car uses a MAF sensor in the intake near the air filter. Turbo GSR/Evo variants do have a pressure (MAP/boost) sensor mounted on the body with a vacuum hose to the intake manifold.

Why does my scan tool show a MAP reading if my Lancer doesn’t have one?
Many scan tools label a calculated load or barometric reading as MAP/BARO. The CE ECU can use internal barometric sensing and other inputs to estimate manifold pressure, so a value may appear even without a physical MAP sensor under the bonnet.

I’ve got a P0106 “MAP range/performance” code—what should I check?
On an NA 1997 Lancer, start with MAF and vacuum integrity: clean the MAF, check for intake leaks, verify PCV and brake booster hoses, and inspect wiring/grounds. Some generic ECUs map P0106 to pressure plausibility, fixing unmetered air or a lazy MAF often clears it. Turbo GSR/Evo owners should also inspect the pressure sensor hose and 5V reference.