Question about 2008 Mitsubishi Lancer

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Mitsubishi lancer check engine light

Check enginelight is on.idle is sluggish on acceleration. poor fuel mileage. OBD says throttle position sensor.

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  • Mitsubishi Master
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Yeah, if I were you, I will erase the fault code with your OBD2 car code scanner first. If the engine light on, there must have some questions on the throttle position sensor, I will fix it.

Posted on Dec 11, 2012

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Posted on Jan 02, 2017

  • 117 Answers

SOURCE: 1992 Mitsubishi Lancer GSR, 4wd 1.8 dohc turbo, cd5a, 4g93-t engine.

first thing to do is remove spark plugs and if they smell really fuely you will need to change them if that doesnt help you will need to get the microtech tuned for a good coldstart , this depends on if its running stand alone or as a piggy back
cheers.
please leave feedback.

Posted on Jun 30, 2008

  • 1 Answer

SOURCE: mitsubishi lancer service engine light comes on and rpm's high

same as mine
2000 Lancer cedia

Posted on Oct 19, 2009

  • 18 Answers

SOURCE: Mitsubishi lancer gsr 92,dohc turbo 1.8 4wd,cd5a chassis, 4g93-t engine.

yea sound like turbo problem get rid of it

Posted on Oct 12, 2008

  • 1 Answer

SOURCE: WHERE IS THE CAMSHAFT POSITION SENSOR ON A MITSUBISHI LANCER ES

It is right underneath your air cleaner.

Posted on Jan 15, 2009

  • 523 Answers

SOURCE: 91 mitsubishi gto has random engine cut out.

Does this car have its original ECU? I ask this because this and a number of early 1990s Mitsubishi cars/truckas had isses with capaciors leaking. In truth I believe it is a matter of when and not if. As the ECU begins to fail the engine can begin to run poorly ( I speak from experience after changing both ECUs in my Montero and my son's Doge Stealth (3000GT) ) I did have an issue too with my son's Stealth running poorly, by good luck I happened to be looking under the hood with poor lighting and noticed a faint blue spark from the wiring leads by the coil after a good look I fould a wire would ground out when the engine was throttled; this caused the engine to torque slightly causing the wire to rub and finally ground out.
I hope this may have helped,
Tom

Posted on Oct 10, 2009

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2003 sta fe hyundai give code 121


P0121 HYUNDAI - Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance

Possible causes - Faulty throttle position sensor - Throttle position sensor harness is open or shorted - Throttle position sensor circuit poor electrical connection - Faulty Engine Control Module (ECM) What does this mean? When is the code detected? Malfunction is detected when an excessively low or high voltage from the sensor is sent to ECM. Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) P0121 Hyundai Description The throttle position sensor (TPS) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM. Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.

Nov 20, 2016 | Hyundai Cars & Trucks

1 Answer

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


-
Ignore the accelerator pedal input


?€¢
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

May 03, 2016 | Cars & Trucks

2 Answers

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.

Apr 08, 2015 | 2000 Subaru Outback

1 Answer

Automatic transmission not shifting gears


Get the problem identified by using an OBD II tester. Shifting problem may be due to transmission fluid, change if necessary. Check fuel pump pressure and also check the voltage output of the oxygen sensors.

Jun 16, 2013 | Mitsubishi Lancer Cars & Trucks

1 Answer

My '01 impala 3.4 v-6 flat spots when COLD, at around 20mph. the idle is ruff with random misfires. acceleration is overall poor. when HOT, most symptoms go away leaving only some slight acceleration...


depending on mileage, but possible tune-up could fix it. if already done then check ignition coil pack and ignition wires also spark plugs, check vacuum hoses for leaks or porous, last injectors clogged - use some techron fuel injector cleaner (wal-mart has them). Also get the throttle body and iac valve cleaned by throttle cleaner . Also this other possibilities are to be checked and confirmed.:---- Engine running rough or misfiring can be cause by the following:

1.Defective spark plugs
2.Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4.False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.
11. Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

--------- This should help.Keep updated.Thanks.Helpmech.

Mar 27, 2011 | 2001 Chevrolet Impala

1 Answer

Hard to start running rich & stall


Sounds like a MAP inlet Manifold Absolute Pressure sensor fault. Symptoms of a faulty MAP


  • Poor starting/erratic idling/engine stall - with the MAP not sending the correct inlet air pressure signals to the ECU, incorrect fuel injection volumes then result. The imbalance in the fuel/air ratio often leads to rough engine performance and poor starting and stall. The engine might be kept running at start up by pumping the accelerator pedal
  • Sluggish performance/power ceiling - the engine may seem to perform normally in the lower rev range but will severely run out of power above about 3000 rpm
Poor fuel economy. The ECU tends to supply an over rich fuel mix to the engine in the absence of signal from the MAP resulting in very poor fuel economy. The reason for this is that if the MAP has no signal this ECU assumes 'no vacuum' = fully open throttle = engine is under load. To match this 'open throttle' signal the ECU increases the injection cycle to supply more fuel

How to Check? The MAP has three electrical pins, one for 12 volts (or 5 volts) reference, one for ground and the third (the middle one generally) is the 'signal' output. Put a voltmeter positive connector on the 'signal' pin of the connected socket (back probe by inserting a bit of wire). Apply suction to the vacuum input, even sucking on it with your mouth, should result in a measurable voltage output. At normal air pressure (open throttle) the voltage seen should be 0 volts. As vacuum is applied the voltage output should change to about 5 volts (throttle closed at idle). If no transition seen the MAP is faulty.

Feb 02, 2011 | Chrysler Sebring Cars & Trucks

2 Answers

MAP sensor output voltage too low?


poor start, very poor gas millage

Jul 31, 2009 | 1993 Mitsubishi Mirage

2 Answers

Having a problem with my 93 camry v6. car shakes when it is idle, when i accelerate car makes a clunking noise and doesnt accelerate as fast as it used to. also check engine light is on. could it be dirty...


Most likely you need motor mounts for the shaking and clunking.
The check engine light being on could cause the accelerating problem. It could be something as simple as the fuel filter being old and plugged up. Have you ever changed the fuel filter? This could cause the engine to run lean making the check engine light come on. And when accelerating the engine will be "starving" for fuel causing poor acceleration.

Apr 23, 2009 | 1993 Toyota Camry V6

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