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jon-t, UK Car Mechanic
Category: UK Car
Satisfied Customers: 895
Experience:  NVQ L2 & L3Mechancal & Electronic Systems,BMW Technician, AMIMI, Eng Tech
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Peugeot: rev..p0121 throttle postion sensor..sensor replaced..pedal

Customer Question

peugeot 307 1.4 16v on a 04 car will not rev engine light on and coming up with a code of p0121 throttle postion sensor replaced the sensor witch is part of the pedal still the same please help
Submitted: 7 years ago.
Category: UK Car
Expert:  jon-t replied 7 years ago.
This code is relevant to the throttle body on the engine and it requires a new throttle body.The throttle body has a sensor built in to it which monitors the flap position and adjusts it accordingly to the pedal position.
Customer: replied 7 years ago.
hi is there any tests i can do on the throttle body to make sure its that
Expert:  jon-t replied 7 years ago.
Only if you have the correct diagnostic tools and software to tell you the measured points, a visual check will not help.
Customer: replied 7 years ago.
i have the snap on ethos diagnostic tool just not sure on the readings i should be getting anymore info will be a great help otherwise might have to try a second hand one
Expert:  jon-t replied 7 years ago.

With the main dealer diagnostic kit you can compare position readings of the throttle body/pedal.

I have no experience of the snap-on system

Best to try a new unit


jon-t and other UK Car Specialists are ready to help you
Customer: replied 7 years ago.
ok mate thanks for the info will crack on with it in the morning Smile
Expert:  jon-t replied 7 years ago.

Please click the accept button



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