Buy Toyota Camry Throttle Bodys

The throttle body sits between the air filter housing and the intake manifold, acting like a door that opens wider when you ask for more power. Modern Camrys use an electronic "drive‑by‑wire" design where a small DC motor moves the butterfly plate instead of a cable, giving the engine computer precise control over airflow (HowStuffWorks). Inside the housing you'll also find sensors such as the throttle‑position sensor (TPS) and, on older models, an idle‑air control (IAC) valve that lets air bypass the plate when you're not pressing the pedal (HowStuffWorks).

Pressing the accelerator sends a voltage signal to the engine control unit (ECU); the ECU then commands the throttle actuator motor to rotate the plate, matching airflow to desired torque (papers.sae.org). Because airflow and fuel flow are linked, the ECU simultaneously adjusts fuel injectors to keep the air‑fuel ratio close to 14.7:1 for clean combustion (HowStuffWorks). On 2007‑up Camrys (XV40/XV50/XV70), Toyota's ETCS‑i system also handles cruise control, traction control, and idle speed through the same throttle body, eliminating extra mechanical parts.

A failing or grimy throttle‑body assembly can trigger:

• Surging or stalling idle-carbon deposits keep the plate from closing properly, confusing the ECU (GoMechanic)
• Hesitation when accelerating-the motor or TPS reports mismatched positions (YouTube)
• Check‑engine lights for codes such as P2103, P2111, P2112, or P0121 that point to throttle actuator range or stuck‑open faults (NHTSA, YourMechanic)
• Reduced‑power ("limp") mode-the ECU limits throttle angle to protect the engine when it detects mismatch

1. Scan for DTCs. Codes P2103 or P2111 usually indicate a motor circuit fault or plate jam .
2. Visual inspection. Remove the intake boot and check for heavy soot on the butterfly and bore walls (YouTube).
3. Measure plate response. With the key ON, have a helper press the pedal; the plate should sweep smoothly and return without sticking (YouTube).
4. Check connector pins. Corrosion or a loose ground on the throttle harness can mimic a bad unit (NHTSA).

Toyota recommends inspecting the throttle body every 30,000 miles or whenever idle quality changes. Light deposits can be removed with a lint‑free cloth and throttle‑body‑safe cleaner (avoid spraying electronics directly) (YouTube, Berryman Products). After cleaning, perform the idle relearn:

1. Key ON (engine off) 60 seconds.
2. Key OFF 10 seconds.
3. Start engine; let it idle with all accessories off until warm.
4. Road‑test at varied throttle openings.

Owners share success with this routine on Camry forums (Toyota Nation, Toyota Nation), and it prevents rough idle or stalling showcased in popular DIY videos (YouTube).

If cleaning doesn't solve the issue, a full throttle‑body assembly runs about US $250 - $600 for the part and $150 - $300 for labor, depending on engine size and local shop rates (J.D. Power). DIY mechanics need only basic sockets and a torque wrench; tighten the four mounting bolts to 80 lb‑in (10 N·m) on 10 mm fasteners or 22 lb‑ft (30 N·m) on 12 mm bolts (Toyota Nation).

1. Disconnect battery to reset learned idle and avoid accidental shorts.
2. Remove air‑intake duct and unplug TPS/actuator connectors.
3. Unbolt throttle body; catch any coolant if hoses run through the housing on some 4‑cyl trims.
4. Swap gasket; never reuse the rubber seal.
5. Torque bolts in a criss‑cross pattern (specs above).
6. Reconnect wiring, intake tube, and battery.
7. Idle relearn as described earlier (Toyota Nation).

• 1992‑2001 (XV10/XV20) models use a cable‑driven throttle valve plus separate IAC; 2002‑present (XV30→XV70) switch to full electronic control (Reddit).
• Engines include 2AZ‑FE 2.4 L, 2AR‑FE 2.5 L, A25A‑FKS 2.5 L, and V6s like 2GR‑FKS. Each uses a unique throttle bore size-so match the engine code when ordering.
• Hybrid Camrys share the same housing but may have additional coolant lines for faster warm‑up.

A clean throttle body restores smooth airflow, improving fuel economy by 4‑10 % in vehicles with heavy deposits according to chemical manufacturer testing (Berryman Products). By guarding against rich or lean spikes, it also helps engines meet the tighter CO₂ and NOx targets highlighted in the 2022 EPA Automotive Trends Report .

• Toyota's 2009‑2011 unintended‑acceleration recalls focused on floor‑mat interference and pedal shape, not the throttle bodies themselves, but the events prompted the NHTSA and NASA to analyze the Electronic Throttle Control design and software for failure modes (NHTSA, NHTSA).
• A 2023 Toyota Service Bulletin (T‑SB‑0092‑23) updates ECU calibration to reduce false P2100‑series throttle actuator errors in late‑model Camrys; dealers reflash the ECU at no charge (NHTSA).

When the throttle plate can't close fully, idle speed climbs and fuel efficiency suffers, increasing tail‑pipe CO₂. Keeping the assembly clean therefore reduces fuel burned and supports stricter emissions rules recently finalized for light‑ and medium‑duty vehicles (see the EPA's 2023 heavy‑duty rule) .

Q: Where is the throttle body on a Toyota Camry?
A: It bolts to the front of the intake manifold, just past the air‑filter box, and is easy to spot by the big round bore and the wiring plug for the actuator motor (YouTube).

Q: What are other names for this part?
A: Mechanics may call it the throttle valve, air intake valve, or ETC actuator-all mean the same core assembly.

Q: How often should I clean it?
A: Check for soot every 30,000 miles or if idle feels rough; light deposits wipe off in minutes (YouTube).

Q: Can a dirty throttle body cause stalling?
A: Yes. Carbon can choke airflow at idle, letting the engine die when the ECU can't add enough air bypass (GoMechanic).

Q: Why did I get code P2103 after a battery change?
A: The ECU lost its learned throttle positions. Perform the idle‑relearn routine or have a shop run Techstream to calibrate it (YourMechanic, Toyota Nation).

Q: Do all Camrys use electronic throttle?
A: Models from 2002 onward do; older ones use a cable and have a separate idle‑air valve (Reddit).

Q: Is replacement hard?
A: Moderate DIY-just four bolts and a gasket-but follow torque specs (80 lb‑in or 22 lb‑ft) and relearn the idle afterwards (Toyota Nation, YouTube).

Q: Will cleaning improve gas mileage?
A: Tests show up to a 10 % improvement when heavy buildup was removed, thanks to steadier airflow and fuel metering (Berryman Products).

Q: What can happen if I ignore throttle‑body problems?
A: You may face reduced‑power mode, higher emissions, poor fuel economy, or in rare cases unintended idle surge (NHTSA).

Q: Are there recalls for the throttle body itself?
A: No direct recalls, but software updates (like T‑SB‑0092‑23) fine‑tune the ECU to prevent false actuator faults (NHTSA).

By weaving in practical tips, common questions, and safety context-plus outbound references like and the NASA safety report-this guide offers readers everything they need to understand, maintain, and replace the Toyota Camry throttle body with confidence.