Thom 1 Posted October 18, 2007 Hi, Have just read the fault codes from my C's ECU and have come up with the following: 00525 : Oxygen sensor, Low voltage 00516 : Throttle Position Sensor - Closed Switch 00587 : Mixture Control Adjustment, Bad ECU Ground/Air Leak/Leaking Injector My reason for checking the codes is an occaisional very rough idle and hesitation/stalling. My o2 sensor is only 10K miles old and have checked the wiring around the TPS and for air leaks. Can these faults all be linked to a fault Throttle position sensor, or is there something else I should be trying first? Ta :? Quote Share this post Link to post Share on other sites
Crasher 3 Posted October 18, 2007 Check the wiring to the throttle switch and to the lambda sensor plug on the engine mount bracket. It may just need setting up. Quote Share this post Link to post Share on other sites
