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This sensor basically sends info to the car's computer so when it is faulty it means you won't know the position of your car's throttle, the fuel, or engine's performance so you have to get it fixed because it sometimes gets rusty and thus needs to be cleaned up.
The 1.5L was never a power house, but the first checks should be
* check if the ECU is throwing an error code. If so this is a vital clue.
* verify the cam belt alignment. This can slip a few teeth and cause all sorts of problems
* verify the timing (assuming your 98 has a distributor or cam position sensor adjustment)
* Pull the injectors and soak them in injector cleaner.
* clean or replace the air filter.
* Check the coolant temp sensor (on the thermostat housing) does not have damaged wires. This sensor is vital for the ECU to decide what timing and mixture is needed.
Hi i'm having a P0120 fault code throttle/pedal position sensor "A" ciruit can somebody tell me where can i find that sensor or any oe number of the sensor..thanks
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.
Your idle problem could be caused by the EGR Valve, the Idle Air Control Valve, or the Throttle Position Sensor, or the Mass Airflow Sensor.Because there are so many things involved, you need t have the computer scanned for codes. The codes will tell us which of these components might be at fault. There are a few things you can do that might help. Make sure there are no vacuum leaks such as loose or damaged vacuum hoses. Make sure the air filter is clean. Get some Throttle Body Cleaner and clean the throttle body and the Idle Air Control Valve. Don't try to adjust the idle speed. It is controlled by the computer. Unless of course, you have had the throttle body and linkage removed from the engine, which could have caused the throttle linkage to be out of adjustment. You could try turning the adjusting screw to get the idle rpm up to around 700 rpm. But most likely, the computer will override any thing you do in that area.
There is an adjustment to be made. Loosen the bolts and adjust the rotation until the specs are met.
MX-3 with 1.6L DOHC and 626/MX-6/Probe with 2.0L Engine
MANUAL TRANSAXLE
Detach the connector from the throttle position sensor.
Connect an ohmmeter between terminals IDL and E.
Insert a 0.004 in. (0.1mm) feeler gauge between the throttle stop screw and stop lever.
Verify there is continuity between terminals IDL and E.
Then replace the feeler gauge with a 0.027 in. (0.7mm) feeler gauge, verify there is no continuity between terminals IDL and E
Then open the throttle wide and verify there is no continuity again between terminals IDL and E.
Next, connect the ohmmeter between terminals POW and E.
Insert a 0.004 in. (0.1mm) feeler gauge between the throttle stop screw and stop lever.
Verify there is no continuity between terminals POW and E.
Then replace the feeler gauge with 0.027 in (0.7mm), verify there is no continuity between terminals POW and E.
Then open the throttle wide and verify there is continuity between terminals POW and E.
If not as specified, adjust or replace the throttle
AUTOMATIC TRANSAXLE
Detach the connector from the throttle position sensor.
Connect an ohmmeter between the terminals IDL and E.
Insert a 0.004 in. (0.1mm) feeler gauge between the throttle stop screw and stop lever.
Verify there is continuity between terminals IDL and E.
Insert a 0.024 in. (0.6mm) feeler gauge between the throttle stop screw and stop lever.
Verify there is no continuity between terminals IDL and E.
Connect an ohmmeter to the throttle sensor terminals Vt and E.
Verify that resistance increases as throttle valve opening increase.
With throttle valve fully closed the resistance should be below 1 kilohm and as throttle valve is fully opened resistance should increase to approximately 5 kohms.
If not as specified, adjust or replace the throttle sensor.
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