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r
ray Free Posted on May 15, 2016
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Check engine light on. check codes & got 41, 43. Throttle position Sensor and Starter Signal. How do they relate?

V6 4 wheel drive

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Bogdan Odwazny

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  • Toyota Master 6,171 Answers
  • Posted on May 16, 2016
Bogdan Odwazny
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Joined: Jan 20, 2013
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Reset and drive ,check again.

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My 2005 chevy equinox has codes P1791 P0700 P1125 P2138

These codes appear to relate to your throttle poistion sensor(s) - check your throttle cable linkages and in particular the position sensor on the throttle body.
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I changed everything on a 2007 Chevy uplander the camshaft position sensor And the purged sensor And the throttle body and still the check engine light and the reduce engine power came back on

Reduced Engine Power Mode When the ECM detects a condition with the TAC system, the ECM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
?€¢
Acceleration limiting--The ECM will continue to use the accelerator pedal for throttle control, however, the vehicle acceleration is limited.


?€¢
Limited throttle mode--The ECM will continue to use the accelerator pedal for throttle control, however, the maximum throttle opening is limited.


?€¢
Throttle default mode--The ECM will turn OFF the throttle actuator motor and the throttle will return to the spring loaded default position.


?€¢
Forced idle mode--The ECM will perform the following actions:


-
Limit engine speed to idle by positioning the throttle position, or by controlling the fuel and spark if the throttle is turned OFF


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Ignore the accelerator pedal input


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Engine shutdown mode--The ECM will disable fuel and de-energize the throttle actuator.
Did you have it checked for DTC's - diagnostic trouble code's related to the reduced engine power ?
All so has APP sensor gas pedal !
Accelerator Pedal Position (APP) Sensor
The accelerator pedal contains 2 individual accelerator pedal position (APP) sensors within the assembly. The APP sensors 1 and 2 are potentiometer type sensors each with 3 circuits:
?€¢
A 5-volt reference circuit


?€¢
A low reference circuit


?€¢
A signal circuit

The APP sensors are used to determine the pedal angle. The engine control module (ECM) provides each APP sensor a 5-volt reference circuit and a low reference circuit. The APP sensors provide the ECM with signal voltage proportional to the pedal movement. The APP sensor 1 signal voltage at rest position is less than 1 volt and increases to more than 4 volts as the pedal is actuated. The APP sensor 2 signal voltage at rest position is less than 0.6 volt and increases to more than 2 volts as the pedal is actuated.
Your best bet is take your vehicle to the dealer !
al

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2answers

Po 122 problem light on had changed sensor problem not fixed trans not shifting right horrible jurks when it shifts.

P0122 is TPS signal low, which could mean you have a bad TPS, or a fault in the wiring or connector. I suspect a bad Throttle Position Sensor.
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I have p 1121 and a P 0401 codes on my 1998 ford windstar. are these related? what can I check? replaced the mass airflow sensor recently.



P1121 Ford Throttle Position Sensor Inconsistent with Mass Air Flow Sensor
http://engine-codes.com/p0401_ford.html no they are not related !
Are there any cracks in the rubber hose from air cleaner to throttle body ! That could cause the P1121 air entering after mass air flow sensor !
P1121 - Throttle Position (TP) Sensor Inconsistent with MAF Sensor The PCM monitors a vehicle operation rationality check by comparing sensed throttle position to mass air flow readings. If during key ON engine running self-test the comparison of the TP sensor and MAF sensor readings are not consistent with calibrated load values, the test fails and a diagnostic trouble code is stored in continuous memory.
  • Air leak between MAF sensor and throttle body
  • TP sensor not seated properly
  • Damaged TP sensor
  • Damaged MAF sensor
Drive vehicle and exercise throttle and TP sensor in all gears. A TP PID (TP V PID) less than 4.82 % (0.24 volt) with a LOAD PID greater than 55% or a TP V PID greater than 49.05% (2.44 volts) with a LOAD PID less than 30% indicates a hard fault. P0401 - EGR Flow Insufficient Detected The EGR system is monitored during steady state driving conditions while the EGR is commanded on. The test fails when the signal from the DPF EGR sensor indicates that EGR flow is less than the desired minimum.
  • Vacuum supply
  • EGR valve stuck closed
  • EGR valve leaks vacuum
  • EGR flow path restricted
  • EGRVR circuit shorted to PWR
  • VREF open to D.P.F. EGR sensor
  • D.P.F. EGR sensor downstream hose off or plugged
  • EGRVR circuit open to PCM
  • VPWR open to EGRVR solenoid
  • D.P.F. EGR sensor hoses both off
  • D.P.F. EGR sensor hoses reversed
  • Damaged EGR orifice tube
  • Damaged EGRVR solenoid
  • Damaged PCM
Perform KOER self-test and look for DTC P1408 as an indication of a hard fault. If P1408 is not present, look for contamination, restrictions, leaks, and intermittents
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Car starts will not accelerate, code reader says Code DTC 22 Throttle Position Low

Well code 22 means the signal coming from the TPS is too low. That usually means an open circuit between the sensor and the engine computer. The computer sends a 5 volt signal to the sensor and reads what comes back to the computer. Its possible the sensor is way out of adjustment, but more likely a broken wire or connector between the sensor and computer. You would need a scanner to "see" the data stream from the sensor to know for sure.
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2009 Avalanche cruise control will not engage. the light comes on in the steering wheel

Not sure on the throttle position sensor issue but the no cruise control issue can often be the brake switch. Very, very common. Switch is relatively cheap and it is easy to replace.
4helpful
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P0121 generic throttle/pedal position sensor a circuit range/ performance

P0121 - Throttle Position Sensor/Switch A Circuit Range/Performance Problem

The Throttle position sensor is a potentiometer that measures the amount of throttle opening. As the throttle is opened, the reading (measured in volts) goes up. The powertrain control module (PCM) supplies a 5 Volt reference signal to the throttle position sensor (TPS) and usually a ground also. A general measurement is: at idle = .5 Volts; full throttle = 4.5 Volts. If the PCM detects that the throttle angle is greater or less than it should be for a specific RPM, it will set this code.

Potential Symptoms: Symptoms of a P0121 trouble code could include:
Malfunction Indicator Lamp (MIL) illumination (Check Engine Light or Service Engine Soon light)
Intermittent stumble on acceleration or deceleration
Blows black smoke on acceleration
No start

Causes: A code P0121 may mean that one or more of the following has happened:
TPS has intermittent open or short internally
Harness is rubbing and causing an open or short in the wiring
Bad connection at the TPS
Bad PCM (less likely)
Water or corrosion in connector or sensor

Possible Solutions:
1. If you have access to a scan tool, see what the idle and WOT (wide open throttle) readings are for the TPS. Check if they're close to the specifications mentioned above. If not, then replace the TPS and re-check.
2. Check for an intermittent open or short in the TPS signal. To do that, you can't use a scan tool. You'll need an oscilliscope. The reason is because scan tools take samplings of many different readings over just one or two data lines and can miss an intermittent drop out. Hook up your oscilliscope and watch the signal. It should sweep up and down smoothly with no drop outs or spikes.
3. If no problems were noticed, perform a wiggle test. Do this by wiggling the connector and harness while watching the pattern. Does it drop out? If so, replace TPS and re-check.
4. If you have no TPS signal, check for 5 Volt reference at the connector. If it's present, check the ground circuit for open or shorts.
5. Make sure the signal circuit isn't 12V. It should never have battery voltage. If it does, trace circuit for short to voltage and repair.
6. Look for any water in the connector and replace TPS as necessary.

Other TPS sensor and circuit related DTCs: P0120, P0122, P0123, P0124
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Jaguar xj6 4.0 1990. showing fault code fuel 14, fail 14. what does this code mean ?

2 airflow sensor out of operating range 3 coolant temp sensor out of operating range 4 oxy sensor indicates full rich 5 throttle potentiometer/airflow sensor... (low throttle pot signal with high airflow sensor signal) 6 throttle pot/airflow sensor...... (high throttle pot signal with low airflow sensor signal) 7 throttle pot...idle fuel adjustment failure(idle speed??) 8 intake air temp sensor...open or shorted circuit to sensor 11 Throttle pot at idle: Throttle pot idle trim out of normal range 12 Airflow meter: MAF signal out of range 14 Coolant thermistor: Resistance out of range or static during engine warm up 16 Air thermistor: Resistance out of range 17 Throttle pot: Out of range 18 Throttle pot/Airflow: Low throttle pot signal at high airflow 19 Throttle pot/Airflow: High throttle pot signal at low airflow 22 Fuel pump drive: ECU output to fuel pump relay 23 Fuel supply: Engine running too rich 24 Ignition Drive: ECU output to ignition Amp 26 Air leak: Engine running too lean 29 ECU self check 33 Injector Drive: ECU output to injectors 34 Injector: Looks for Injector dribble 37 EGR Drive: ECU output to EGR switching valve 39 EGR check sensor: EGR not working (normally pipe blocked) 44 Lambda (O2) sensor: Poor mixture control rich or weak (or misfire) 46 Idle speed Control valve: ECU output to Coil AB 47 Idle speed Control valve: ECU output to Coil CD 48 Idle Speed Control Valve: Stepper motor grossly out of position 66 Air pump: ECU output to air pump relay 68 Road speed sensor: Seen speed < 5km/h at high engine airflow 69 Drive/Neutral switch: Seen cranking in "D" or high airflow in "N" 89 Purge Valve drive: ECU output to purge valve
this is all I could find
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I have problem with code 1126 (toyota 4 runner 2001

Manufacturer Specific Codes

P1100
BARO Sensor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1120 Accelerator Pedal Position Sensor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1121 Accelerator Pedal Position Sensor Range/Performance Problem

P1125 Throttle Control Motor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1126 Magnetic Clutch Circuit

P1127 ETCS Actuator Power Source Circuit

P1128 Throttle Control Motor Lock

P1129 Electric Throttle Control System

P1130 Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code - More Related Information

P1133 Air/Fuel Sensor Circuit Response (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code

P1135 Air/Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code - More Related Information

P1150 Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 2)

P1153 Air/Fuel Sensor Circuit Response (Bank 1 Sensor 2) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code

P1155 Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)

P1200 Fuel Pump Relay Circuit

P1300 Igniter Circuit Malfunction - No. 1

P1305 Igniter Circuit Malfunction - No. 2

P1335 No Crankshaft Position Sensor Signal - Engine Running

P1349 VVT System

P1400 Sub-Throttle Position Sensor

P1401 Sub-Throttle Position Sensor Range/Performance Problem

P1405 Turbo Pressure Sensor Circuit

P1406 Turbo Pressure Sensor Range/Performance Problem

P1410 EGR Valve Position Sensor Circuit Malfunction - Read Our Article on EGR Valve Codes For Help With This Toyota Check Engine Light Code

P1411 EGR Valve Position Sensor Circuit Range/Performance - Read Our Article on EGR Valve Codes For Help With This Toyota Check Engine Light Code

P1500 Starter Signal Circuit

P1510 Boost Pressure Control Circuit

P1511 Boost Pressure Low

P1512 Boost Pressure High

P1520 Stop Lamp Switch Signal Malfunction

P1565 Cruise Control Main Switch Circuit

P1600 ECM BATT Malfunction

P1605 Knock Control CPU

P1630 Traction Control System

P1633 ECM

P1652 Idle Air Control Valve Control Circuit

P1656 OCV Circuit

P1658 Wastegate Valve Control Circuit

P1661 EGR Circuit

P1662 EGR Bypass Valve Control Circuit

P1700 Vehicle Speed Sensor '2' Circuit Fault

P1705 Direct Clutch Speed Circuit Fault

P1765 Linear Shift Solenoid Circuit Fault

P1780 Park/Neutral Position Switch Malfunction (Only For A/T)

Back To Top Of Toyota Check Engine Light Codes Page
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