Question about 2002 Toyota Camry

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02 camry p0121

No accelerator after repair.

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  • gasman70123
    gasman70123 Dec 01, 2012

    rear valve cover gasket replaced

  • Anonymous Dec 01, 2012

    Now you have a new problem to have diagnosed Don't throw parts at it

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1 Answer

Who made a repair?

What repair was made--- in detail?

Was the TPS Sensor tested,found bad & replaced,
only to have the same code?

What was the drivability issues ,from start up,idle,& on the road.

Posted on Dec 01, 2012

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Posted on Jan 02, 2017

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2000 volvo s80 turbo code p0121


code p 0121 refers to throttle position (TP) sensor A/accelerator pedal position (APP) sensor A--range/ performance problem===causes ---accelerator cable adjustment--TP/APP sensor ---wiring

Dec 23, 2016 | Volvo Cars & Trucks

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Dtc p0121 throttle position (tp) sensor performance


code p 0121 has to answers
1--refers to throttle position (TP) sensor/accelerator pedal position sensor A--range /performance problem====causes --accelerator cable adjustment--TP/APP sensor ---wiring
The second reference is the same and the causes are--accelerator cable adjustment--TP/APP switch
(APP is accelerator pedal position)

Aug 30, 2016 | Cars & Trucks

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Whats p0121 solution?


code p0121 refers to throttle position sensor(TP) A/ accelerator pedal position (APP) sensor A --range performance problem===causes---accelerator cable adjustment---TP/APP sensor ---wiring
check that the cable is not broken and/ or replace the sensor.

Dec 14, 2013 | Cars & Trucks

1 Answer

96 Camry LE V6 that hesitates the first thing in the morning,


It sounds like a dead spot in the TPS (throttle position sensor) it is the only sensor that is subject to physical wear (1996 its old replace it) also the 02 sensor is old too.

May 24, 2017 | 1996 Toyota Camry

1 Answer

I'm having the same problem with a P1529 code along with P0500 and P0121 codes as well. Are all these codes associated? Any ideas on what I can do?


P0500 (Vehicle Speed Sensor) May limit the revs of the motor & auto may shift erraticly. P0121 (Throttle Posision Sensor) I would start with this as it can also cause transmition probs. I would just look at these 2

Jul 05, 2012 | Hyundai Santa Fe Cars & Trucks

3 Answers

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

May 01, 2011 | Volkswagen New Beetle Cars & Trucks

1 Answer

1990 camry, flashing check engine light, backfiring with no acceleration when gas pedal is applied , engine runs fine at idle.


first you need to find out why the check engine light is on. Try a parts store and see if they will get the code from the computer that will tell you what sensor is bad. If you have not replaced an oxygen sensor by now that is probably what is wrong. If these are bad for too long you will damage the catalytic convertor and it will rattle when the engine is running. backfiring and no acceleration can come from the 02 sensor since this sets fuel delivery.

Apr 24, 2010 | 1990 Toyota Camry

1 Answer

What would cause my '02 Camry to hesitate, buck,


Even though there is no check engine light I would still take it to Auto Zone to see if there are any stored codes.

Jul 16, 2009 | 1992 Lexus ES

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