Code P1121 for TP sensor - where is it located on engine of 2002 4.0 ford ranger

Question edited for clarity, make sentence and toss in some CAPS.
Question moved to model category.

The engine coolant temp sensor is mounted into the head so it can get a reading for the coolant in the engine. It is in the head between cylinders 2 and 3. The air temp sensor is on the air inlet tube from the air filter box.
Oct 21, 2017

I have a 2002 Ford Ranger 2.3 engine, VIN - JustAnswer

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P0118 = ECT (engine coolant temp) sensor high voltage

P0123 = TP (throttle position) sensor high voltage

P1115 = ECT sensor intermittent high voltage

P1121 = TP sensor intermittent high voltage

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

Sounds like the computor has gone into limp mode. Have you heard any strange noises coming from under the hood lately ?

Possible causes of OBD code P0227
- Harness or connector (The TP sensor circuit is open or shorted.) - Electric Throttle Control Actuator (or Throttle Body Motor) - Accelerator Pedal Position Sensor (APP) The Error code is generally activated on detection of the following conditions: An excessively low voltage from the TP sensor is sent to ECM.

Trouble Code: P0122
Are you sure on p1121 or was it po121 because there is no p1121?
Throttle Position Sensor 'A' Circuit Low Input
Possible Causes:


TP sensor signal circuit is shorted to ground TP sensor VREF circuit is open or shorted to ground

Trouble Code: P0700

TCU Request For MIL -ON-
Possible Causes:


poor connection TCM

Trouble Code: P0121

Throttle Position Sensor Performance
Possible Causes:


MAF sensor or TP sensor ground circuit has high resistance MAF sensor has drifted out of calibration TP sensor has drifted out of calibration TP sensor is damaged or has failed PCM/ECMTP sensor is damaged or has failed PCM has failed

The Throttle Position Sensor (TPS) for Sorento & Sedona models. Some Sorento & Sedona vehicles may exhibit diagnostic trouble codes P0121 and/or P1121. This condition mainly occurs in high ambient or desert areas, and can be related to the occasional increase in contact resistance due to excessive wear of the inner elements of the TP sensor. This bulletin describes the proper service and adjustment procedure for replacing the TP Sensor. - Service Procedure Replacement Procedure: 1. Turn ignition OFF. Remove engine cover and disconnect electrical connector from TP Sensor. 2. Remove two (2) retaining screws from TP Sensor and remove from throttle body. 3. Install new TP Sensor to throttle body. Install retaining screws and hand tighten lightly. Adjustment will be required. Re-install electrical connector to TP Sensor.


Download this file it will help: http://ww2.justanswer.com/uploads/PENTICO/2010-02-21_234050_sorento.pdf

it is located at top of engine at the front hopefully this pic helps

P1121 means that the TP (throttle position sensor) does not match what the MAF (mass air flow sensor) reads

the two leading causes for this are the TP or the PCM (powertrain control module)

you will need a professional scan tool to diagnose in detail