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Please Help! Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting Fmagnets New User Aug 10, 2022, 7:05 PM Post #1 of 3 (1415 views) Please Help! Sign In Hi, Just became a member and this is my 1st posting. I was getting this check-engine warning light on my car so I took it to a mechanic. The mechanic guy diagnosed it with a scanner and told me the camshaft & crankshaft sensors needed to be replaced. I trusted him and let him replace the parts. When I went back to take my car back, he said now it had another problem with the idle air throttle part which was perfectly okay before he touched my car! He further explained that now I should take it to a Nissan dealer since only they have these equipment & tools to perform what he called "throttle body relearn procedure". (He should've told me this first before he started replacing anything on my car, shouldn't he?) My car is in a worse status now, high RPM pulsating like crazy and the engine running really noisy. :( I've got this gut feeling that he did something wrong and not being responsible for. Did I get played or am I just being extremely unlucky here? For your information, I googled and have been trying all sorts of methods that supposedly do the "throttle body relearn procedure" tricks but nothing worked. :( Can you please tell me what can be done with my car and/or the mechanic? I'm really confused and don't know what to do. Any advice or suggestion will be highly appreciated. P.S. : I'm an owner of 2005 Nissan Xtrail. (This post was edited by Fmagnets on Aug 10, 2022, 7:10 PM) Tom Greenleaf Ultimate Carjunky / Moderator Aug 11, 2022, 3:13 AM Post #2 of 3 (1389 views) Re: Please Help! Sign In Welcome: Wrong guy and place apparently. See if you can settle up with that shop and find help for issues like this before it ruins this vehicle! T Hammer Time Ultimate Carjunky / Moderator Aug 11, 2022, 4:17 AM Post #3 of 3 (1383 views) Re: Please Help! Sign In Here are the only 2 learning procedures for that vehicle. Neither one requires the uses of a scan tool. BASIC SERVICE PROCEDURE Throttle Valve Closed Position Learning DESCRIPTION Throttle Valve Closed Position Learning is an operation to learn the fully closed position of the throttle valve by monitoring the throttle position sensor output signal. It must be performed each time harness connector of electric throttle control actuator or ECM is disconnected. OPERATION PROCEDURE 1. Make sure that accelerator pedal is fully released. 2. Turn ignition switch ON. 3. Turn ignition switch OFF wait at least 10 seconds. Make sure that throttle valve moves during above 10 seconds by confirming the operating sound. Accelerator Pedal Released Position Learning DESCRIPTION Accelerator Pedal Released Position Learning is an operation to learn the fully released position of the accel- erator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time harness connector of accelerator pedal position sensor or ECM is disconnected. OPERATION PROCEDURE 1. Make sure that accelerator pedal is fully released. 2. Turn ignition switch ON and wait at least 2 seconds. 3. Turn ignition switch OFF and wait at least 10 seconds. 4. Turn ignition switch ON and wait at least 2 seconds. 5. Turn ignition switch OFF and wait at least 10 seconds. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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