Parts for your 2019 Toyota Camry-Map sensor

2019 Toyota Camry MAP sensor — is it fitted, what it does, and how to look after it

Yes — the 2019 Toyota Camry does use a MAP (Manifold Absolute Pressure) sensor. Technical references that confirm this include the Toyota Technical Information System (TIS) Repair Manual for 2019 Camry engines (A25A-FKS 2.5L petrol, A25A-FXS hybrid, and 2GR-FKS 3.5L V6) where the MAP sensor is covered in the SFI (Sequential Fuel Injection) system diagnostics and DTCs P0106, P0107, and P0108. Toyota’s Electronic Parts Catalogue (EPC) also lists a “Sensor, Manifold Absolute Pressure” for 2018–2021 Camry variants (common part numbers include 89421‑0E030 and 89421‑0E040, depending on engine and build).

On the 2019 Camry, the MAP sensor helps the engine computer understand how much air the engine is actually pulling into the manifold. That pressure reading is blended with data from the MAF sensor, throttle position, and engine speed to fine-tune fuelling and ignition timing, keep the idle tidy, and manage the cooled EGR system on the Dynamic Force engines. It’s a small unit mounted on or near the intake manifold, sealed by an O‑ring.

As part of regular servicing, the MAP sensor doesn’t need much fuss. It’s not a wear item, and cleaning is usually unnecessary unless there’s evidence of oil vapour contamination or dust ingress from a dodgy air filter or intake leak. If the Camry throws a check engine light with codes like P0106–P0108, shows rough idle, flat spots, black smoke, or poor fuel economy, it’s worth checking MAP sensor readings with a scan tool and inspecting the vacuum line or manifold port for blockages (where applicable).

• Care tips: ensure the air filter and intake ducting are sealed and in good nick, fix any vacuum leaks promptly.
• When replacing: use a genuine or OE‑quality sensor, lightly lubricate the O‑ring, seat it squarely, and don’t overtighten the fastener. Clear codes and perform an idle relearn if required by the manual.
• Diagnosis: at key‑on/engine‑off, MAP should read close to local barometric pressure, at hot idle, expect a lower kPa due to manifold vacuum. Compare with known-good data.

Owners who keep the intake system clean and sealed will rarely have MAP sensor dramas. If replacement is needed, it’s a quick job under the bonnet and restores smooth running and proper fuel economy.

FAQs

Where is the MAP sensor on a 2019 Camry?
It’s mounted on the intake manifold area, typically secured with a single bolt and sealed by an O‑ring. On the 2.5L and 3.5L engines, look near the throttle body on the manifold, it’s a small rectangular plug-in sensor with a two or three-pin connector.

What are common signs of a failing MAP sensor?
A check engine light with P0106, P0107, or P0108, rough idle, hesitation on take-off, poor fuel economy, or black smoke. These symptoms can also be caused by vacuum leaks or a dirty MAF, so a quick smoke test and scan data check is a smart move before replacing parts.

Should the MAP sensor be cleaned or just replaced?
If contamination is visible, a gentle clean of the manifold port and the sensor tip with electronics-safe cleaner can help. If the sensor output is erratic or out of range even after checks, replacement is the reliable fix. There’s no set interval — service it as condition dictates.