Parts for your 2019 Honda Civic-Map sensor

2019 Honda Civic MAP sensor: purpose, upkeep, and when to swap it

Based on technical sources including the Honda Civic (2016–2021) Service Manual for the PGM-FI system and OEM parts catalogues used by dealers and repair data platforms, the 2019 Honda Civic is fitted with a MAP (Manifold Absolute Pressure) sensor. Both the 2.0-litre naturally aspirated and the 1.5-litre turbo variants use a MAP sensor for engine load calculations, turbo models also carry a separate charge-air/boost pressure sensor. Diagnostic routines and DTCs such as P0106, P0107 and P0108 in Honda service literature further confirm its use on this model.

For the 2019 Civic, the map-sensor is a small but crucial bit of kit. It reads the absolute pressure inside the intake manifold and sends that info to the ECU so it can dial in fuel, ignition timing and, on turbo cars, coordinate with boost control. That’s how the engine keeps driveability tidy, fuel use sensible and emissions on the right side of legal. When the reading goes off, everything from idle quality to throttle response can feel a bit ordinary.

It’s generally a maintenance-free item, but life in the manifold means exposure to oil mist and soot. Over time, that can skew readings. As part of routine servicing on a 2019-honda-civic map-sensor, a quick inspection is worthwhile—no need to overthink it.

• Telltale signs it’s unhappy: rough idle, sluggish take-off, higher-than-usual fuel consumption, black smoke, hard starting, or the MIL glowing. Common codes: P0106 (range/performance), P0107 (low input), P0108 (high input). Turbo trims may also log boost-related codes if readings don’t align.
• Simple care: with the engine cool, unplug the connector, pop the sensor out of the manifold, and inspect the tip and O-ring. If it’s grimy, use a sensor-safe electronics or MAF/MAP cleaner—never harsh solvents or compressed air blasting. Let it dry fully, fit a fresh O-ring if flattened or cracked, and refit, tightening to the spec in the workshop manual.
• Before blaming the map-sensor: check for split vacuum hoses, intake leaks, gunked throttle body, or wiring/connectors with corrosion—these often cause the same symptoms.
• Replacement: there’s no set interval, replace only if testing per Honda’s procedure shows the sensor out of spec or if cleaning doesn’t restore proper readings. Use quality OEM-equivalent parts so the ECU sees the right calibration.

Owners after fuss-free motoring will find that a quick look during regular services keeps the 2019 Civic’s map-sensor happy and the car running sweet as.

Popular questions about the 2019 Honda Civic map-sensor

Where is the MAP sensor on a 2019 Honda Civic?
On most trims it’s mounted on or near the intake manifold, typically on the top or side where it can read manifold pressure directly. Turbo models also have a separate charge-air/boost pressure sensor on the intercooler pipework, so don’t mix the two up when diagnosing.

What are the usual symptoms or codes of a failing MAP sensor?
Expect rough idle, flat spots, poor fuel economy, and the check engine light. Common codes include P0106, P0107, and P0108. If it’s a turbo Civic, mismatched readings may also trigger boost plausibility codes. Always check for intake leaks and wiring issues before swapping parts.

Can cleaning the MAP sensor fix driveability issues?
Often, yes. Light contamination from oil vapour can skew readings. A careful clean with a sensor-safe spray can restore proper operation. If the fault returns quickly or the sensor fails voltage/scan tool tests laid out in Honda’s service procedures, replacement is the better bet.