Question about 1999 Ford Explorer

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How to fix code p1121 - 1999 Ford Explorer

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P1121-Throttle Position Sensor Inconsistent with MAF Sensor.

Air leak between MAF and Throttle Body (Ducting)
TPS Sensor
MAF Sensor

Don't throw parts at it. The code doesn't tell you what to do or change.
Look for the easy stuff and learn how to uses a volt meter on the TPS

Posted on Sep 01, 2010


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1 Answer

Code po120

P0700: TCU Request For MIL On

P0120: Throttle/Pedal Position Sensor/Switch 'A' Circuit

P1121: Throttle Position Sensor Signal Invalid

P0122: Throttle/Pedal Position Sensor 'A' Circuit Low Input

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How do I change the absolute pressure sensor pulse width modulation

code p 0700 is a tcm problem or wiring
I don't have a p1121 code for kia

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I have a p1121 code and a p1115. What are these codes?

p1115 is coolant temp intermittently high. Could be the sensor or wiring/plug.
p1121 is TPS is invalid. Again this could both the sensor or wiring/plug. Takes a volt /ohm meter and a bit of time to figure out.

Apr 04, 2016 | 2000 Kia Sportage

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How to fix p1121 code in dicor 1.4 l disel

P0120 Throttle/Pedal Position Sensor/Switch A -Circuit Malfunction
P0121 Throttle/Pedal Position Sensor/Switch A -Circuit Range/Performance Problem
P0122 Throttle/Pedal Position Sensor/Switch A -Circuit Low Input

,try changing the throttle pedal switch/mechanism on the floor in the cabin

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code p1121 refers to throttle position motor---malfunction===causes--throttle position motor
--- fix--replace the unit.

Dec 30, 2013 | Nissan Nissan Cars & Trucks

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P1121 nissan

Hi, code p1121 its about electric throttle control actuator. That why your car engine is not reving,

Jul 19, 2013 | Cars & Trucks

1 Answer

Codes P700,P1121 and P0122

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

Jun 08, 2012 | 2003 Kia Sorento

1 Answer


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

Mar 27, 2010 | 2000 Ford Explorer

1 Answer

Where do i find manafacturers fault codes for a fiat stilo 2002 p1121 p1687

Trouble code P1121 means: Throttle Position Sensor A Inconsistent With MAF/MAP Sensor

P1687 Metering Oil Pump Stepping Motor Circuit Malfunction

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