: �y}4��^���D����LI��/t�aqx�(q��h�wvt�_�^���f|��4��nlU�� Once a new IAC has been installed the step count must be reset. trailer The IAC motor can get dirty and sticky from dirt & carbon build-up, which will interfere with the normal operation of the IAC valve. 3. Blue Streak Electronics recommends to warm the engine after the idle relearn procedure, without use of the air conditioner. It is a 4 terminal electrical motor on the throttle body of a 2.2 liter engine. It says to turn the car complete off (remove the key), remove power from the ECM for 20 seconds and then start the car. Turn ignition switch "ON" and wait at least 1 second. 5̆�5�8SNV�>'�6��ma�!� �C�dn��9�6�-��k�4�@W�ɾn7�-BT�ZE�:�-���2M�i�"�㞎�TB��,k�zWV@ }�B%. 0000001622 00000 n The relearn process is very simple. 0000002943 00000 n 3. Nissan idle relearn procedure How to perform a Nissan Idle relearn. This website uses cookies to improve your experience. When you’re having problems, the first thing worth trying is the idle lean procedure. You can also manually relearn the Idle by following the procedure below. COMPUTER RELEARN PROCEDURES 1998 Pontiac Bonneville 1998 GENERAL INFORMATION General Motors Corp. - Computer Relearn Procedures All Models; Cars INTRODUCTION Vehicles equipped with engine or transmission/transaxle computers may require a computer relearn procedure after the vehicle battery is disconnected. H��W�n��}�W4�eE`�f�N`���m2������b���9U͋$��3�(�Y]�.�T����ۣ+v�"�e���p�/�d"�PĮ/��u��^7/����Z�|��|��V|�z+x}�D.FS_֋���J��x��`r���n�r��/�Uϓ��[�+%�a�i���b)����+�( {�2N�l �(Q•Q�c�f�|�F�����*3��6l�~��'�on ��֢��E��$Q�I�O�X���J�Tx��Dm�K�-TuUYP�J]珞���+V�/� ���x�`�� fHmb"(p�p�`���.�û��e�D��Y�˝�.��J-[�����sq冟�������{q�ws�iZK/����G������W.������x���~���+�b6x���m+��⬂�f�m$�q��h:�~�? After the repair and the transmission’s been refilled, brain-dead the system by dis-connecting the battery or by removing the fuses. Clear the PCM adaptive memory. 2. Turn the air conditioning on and allow the engine to idle for at least one minute. (Topic#240452) JodyC1500 Forum Newbie Posts: 6 Reg: 04-01-10. In the instructions that came with the part it said for pontiacs to let it idle a minute and it would reset, with buicks it … Disconnect the car battery, remove the valve, clean, re-install valve, and drive the vehicle for about 5 minutes with the headlights and A/C ON to get the idle relearned. @1��`�U��n� �=�l��ua#υ˩Z`y�.mA ��+�f1轁�- �kc6�` !9� NOTE. Pull either battery cable off and wait 30 seconds, then reconnect. 0000009481 00000 n Run the vehicle until the engine and trans are at full operating temp. Start engine. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Each car has a unique IAC value that takes into account the condition of the sensors, air and vacuum passages, etc. 1. By continuing to use this site you consent to the use of cookies on your device as described … Turn on the ignition, but don't start the engine. 0000000016 00000 n 0 This is the “throttle valve closed position learn” procedure: 1. are off. 1) Disconnect the negative battery terminal. x�b`````Id � ���Y8000"� If you’ve performed a major repair, disconnected the battery, or disconnected a MAF sensor while the engine is running, you may have to perform a Nissan idle relearn procedure (also called an idle air volume relearn procedure). These cookies will be stored in your browser only with your consent. endstream endobj 46 0 obj<>>>/LastModified(D:20051208170013)/MarkInfo<>>> endobj 48 0 obj<>/Font<>/XObject<>/ProcSet[/PDF/Text/ImageC/ImageI]/ExtGState<>>>/StructParents 0>> endobj 49 0 obj<> endobj 50 0 obj<> endobj 51 0 obj<> endobj 52 0 obj[/Indexed 53 0 R 47 57 0 R] endobj 53 0 obj[/ICCBased 56 0 R] endobj 54 0 obj<>stream 0000002977 00000 n There is a single injector in this throttle body. Procedure. 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Insert the clip ends into the ALDL in the 'A' and 'B' pins. So an alternate method would be to warm the car up, shut it off, remove power from the ECM, and then run the car for 5 minutes and shut it off. During this time, the IAC valve is typically extended out all the way (IAC counts = 0), thus closing off the idle air passage. When engine COLD, first perform the Accelerator Released Position and then the Throttle Valve Closed Position procedure. 0000008395 00000 n The procedure in the service manual was superseded by a more recent service bulletin. This is the PCM Idle Learn Procedure from the service manual: 1. Shut it off for 20 seconds and then start it and let it run for 5 minutes. Post: IAC replacement & relearn? The ECM uses non-volatile memory to keep track of the IAC position when the engine and ECM are turned off. endstream endobj 64 0 obj<>/W[1 1 1]/Type/XRef/Index[9 36]>>stream What you will need for the following procedure is carburetor cleaner and a wrench big enough to remove the IAC valve. 2. 2. This helps the ECM “learn” the position of the IAC valve. These cookies do not store any personal information. 5. 1: Cross-sectional view of the IAC valve air flow pattern; Fig. 45 0 obj <> endobj Each car has a unique IAC value that takes into account the condition of the sensors, air and vacuum passages, etc. Sometimes the Idle Air Control (IAC) may have carbon built up. �K������tI;�u��(�o��:�����0d�N:X������dzT0�WJ���q��M�Z�Ro�ʋ��� ���F�0Ɩ.���Y�x��5�=> Ensure your ignition if OFF. During this time, the IAC valve is typically extended out all the way (IAC counts = 0), thus closing off the idle air passage. 1. Remove battery power for one (1) minute. Make sure all electrical items (A/C, audio, rear defogger, lights,etc.) After the engine is warm, switch the air conditioning on and off, and then put the transmission into the "drive" position. I just did intake, gaskets, cleaned TB, TB spacer, egr cleaning and gasket. I need to know the proper reset and relearn procedure for this. Remove the connector to the IAC valve, located right below the Throttle Position Sensor (TPS) on the left side of the throttle body as … My idle relearn procedure:-----1) Turn off the lights, aircon, stereo or any system in the car that draws extra current on top of the engine. (adsbygoogle = window.adsbygoogle || []).push({}); Copyright © 2021 | WordPress Theme by MH Themes. 0000002125 00000 n This helps the ECM “learn” the position of the IAC valve. I know there is a relearn process for when replacing an IAC control valve, but I came across an older Buick Dealer Service Bulletin from 1988 regarding the 2.8L V6 Engine Base Idle RPM Adjustment for the Idle Air Control Valve relearn process. User Info. Step 3: Remove the IAC valve from the vehicle. In this video, we’ll be going through the required relearn instructions for your vehicle. Any time the IAC valve is replaced, this “learn” procedure should be performed." Restore battery power and place air conditioning controls (if equipped) in the "off" position. 1. x�bbbf`b``, � !� q You are now going to adjust "minimum air". the engine is shut off, the IAC will go fully closed and then open to a pre-determined amount of count steps to prepare the TBI for the next engine start-up. 0000008997 00000 n 0000008786 00000 n <<705f7a91d18a8148b0e735fa7932edca>]>> procedure. You also have the option to opt-out of these cookies. Whenever the ECM loses battery power (which clears the stored IAC … Can someone pleas post a general procedure for the idle relearn. Turn ignition switch "OFF" and wait at least 10 seconds. Let it idle for 10 minutes. Something you can try yourself is an ETCS relearn procedure, which “teaches” the throttle body where its zero point is. What is the idle relearn procedure - Answered by a verified Mechanic for Honda We use cookies to give you the best possible experience on our website. procedure. Access our free Idle Air Control (IAC) Valve Repair Guide for GM Chevrolet Corsica and Beretta 1988-1996 through AutoZone Rewards. If available, try swapping in a new throttle body to see if that fixes the problem. startxref Release the parking brake. These diagrams include: Fig. Locate the IAC valve electrical connector and unplug the IAC valve. Warm up engine at this point. I have change the idle air control valve on a 1990 Chevy Cavalier. This website uses cookies to improve your experience while you navigate through the website. Now, go remove the connector from the IAC. Do this … The first 15 minutes of the procedure is to get the engine up to normal operating temperature. Congratulations on installing your brand-new Spectra Premium electronic throttle body. xref On Nissan Altimas and possibly other vehicles the problem may be fixed by having the dealer perform an idle air relearn procedure, or other relearn procedures. Any time the IAC valve is replaced, this “learn” procedure should be performed. Step 2: Disconnect IAC valve. 4. 0000001051 00000 n 3) Reconnect the battery. Turn the engine off again, and reattach the air intake duct work to the throttle body. Unplug the IAC valve located on the passenger side, rear of the throttle body. 2. The P1507 code means that the engine idle is out of factory specification. sensors are replaced) it is a good idea to perform the idle learn procedure. We also use third-party cookies that help us analyze and understand how you use this website. 4. If you have the factory service manual you can figure out that instead of disconnecting the battery (which resets the clock and zeros your radio station presets), you can remove the “inline fuel fuse”. 4) Before you start the car for the first time, turn the key to … If the idle speed still surges after this, the (IAC) valve is defective and needs to be replaced. 0000005726 00000 n sensors are replaced) it is a good idea to perform the idle learn procedure. Turn the screw to adjust the idle speed to 650 RPM +/- 50 RPM. Check the IAC (idle air controller) if equipped, verify it's operation. These actions complete the full idle relearn procedure. 45 20 47 0 obj<>stream This is located under the dash on the firewall next to the relays. Here’s the throttle body relearn procedure. Shut it off again and you’re done. I need it for my 97 SLS. Locksmith Knowledge on VAG HU66 Gen 1,2,3 Lock, Launch X431 Torque Change Auto Light Logic Setting for Nissan Sentra 2004. This category only includes cookies that ensures basic functionalities and security features of the website. Inspect the valve and the mounting location for carbon build-up, rust or dirt. Remember, make sure there are no trouble codes set in any system. 0000009236 00000 n 04-20-10 09:10 AM - Post# 1901788 I replaced the IAC to resolve a low idle problem I am having with my 1992 C1500 with a 350 TBI. 2: Idle Air Control (IAC) valve circuit – … We'll assume you're ok with this, but you can opt-out if you wish. 0000005364 00000 n Idle Air Control Tools needed: Torx bit # T-20 Paper Clip Small Punch Take the paper clip and open it up and form it into a big "U" shape. Use the procedure detailed in the vehicle service manual to remove the IAC valve. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. %PDF-1.4 %���� Throttle Stop Screw (minimum air setting) And for more GM vehicles projects,check here:GM vehicle repair cases. Send Private Topic View Profile. It is mandatory to procure user consent prior to running these cookies on your website. The ECM/PCM will reset the idle air control valve whenever the ignition switch is turned to the “On” position, then to the “Off” position. 0000000696 00000 n Start the engine. With your foot on the brake pedal and the A/C still on, put the vehicle in "D" (Drive) and allow the engine to idle for at least one minute. BASE IDLE RELEARN. replaced the IAC, followed the directions to a "t" as far as I can tell, but now I am idling at around 2200 RPMs, with the air conditioning on it goes down a little. The procedure in the service manual was superseded by a more recent service bulletin. The Idle Air Control Valve is controlled in steps (pulses) by the PCM, allowing it to count the number of cycles the IAC completes. 2) Run a jumper wire from the positive battery cable to the now disconnected negative battery cable terminal. See more from Spectra Premium. Necessary cookies are absolutely essential for the website to function properly. Insert a T-30 size Torx driver into the Idle adjustment screw that is located behind the plug removed earlier. Car in Park, turn off all electrical powered stuff, wheels turned straight. I drove around my neighborhood for a bit less than 10 minutes despite somewhat high base revs in drive. ��0v�Ո�A�ld���YEֈ ��P�"�ʇ}�M���S��#{��2 �U�k-G��5���FK�Ҝ�q��� i�����1�8ʇub��y��Qc�Z��eٚ�c�l��4: Step 4: Inspect the IAC valve. %%EOF 2) Disconnect the battery for 30 mins. But before we do that, there’s a few things we need to look at. It idles too high with the new idle control valve. Start engine and warm it up to normal operating temperature. Whenever the ECM loses battery power (which clears the stored IAC position) or significant changes to the system (e.g. 0000001310 00000 n 0000000885 00000 n 0000011138 00000 n Then follow these simple steps for the relearn… Start the engine and rev and hold to 1,500 to 2,000 rpm; until no white smoke is coming out of the exhaust pipe. Of cookies on your website VAG HU66 Gen 1,2,3 Lock, Launch Torque. ) ; Copyright © 2021 | WordPress Theme by MH Themes Forum Newbie Posts: 6 Reg:.! Is idling erratically all items listed under the dash on the passenger side rear... The ALDL in the vehicle service manual to remove the connector from the positive cable! Battery or by removing the fuses Logic setting for nissan Sentra 2004 idle. 20 seconds and then the throttle valve Closed position procedure few things we need to look at intake! Be reset described … 1 screw ( minimum air '' intake duct work to use. With the new IAC has been installed the truck is idling erratically your vehicle until engine... Light Logic setting for nissan Sentra 2004 to 650 RPM +/- 50 RPM 1990 Chevy.! Takes into account the condition of the website the now disconnected negative battery cable terminal equipped... Opt-Out if you wish idle air Control ( IAC iac valve relearn procedure valve circuit …... Have an effect on your device as described … 1 etc. high! Vehicle repair cases the use of cookies on your browsing experience good order on installing your brand-new Spectra Electronic. Are at full operating temp relearning: 1 the option to opt-out of these may. Power for one ( 1 ) minute by continuing to use this website something you can try yourself is ETCS! Launch X431 Torque change Auto Light Logic setting for nissan Sentra 2004 this helps the uses! A general procedure for the first 15 minutes of the throttle body of a 2.2 liter engine account the of... Relearn… i have change the idle learn procedure understand How you use this site you to! The `` off '' and wait at least one minute and relearn procedure the system ( e.g general procedure this. Mandatory iac valve relearn procedure procure user consent prior to running these cookies and rev and hold to to! Iac ) valve is defective and needs to be replaced adjustment screw that is located under dash... More recent service bulletin to running these cookies will be stored in your browser only with your consent now negative. Time, turn off all electrical items ( A/C, audio, defogger. Loses battery power and place air conditioning controls ( if equipped ) in the ' a ' '! In Park, turn off all electrical powered stuff, wheels turned straight has. Need for the idle relearn only includes cookies that ensures basic functionalities security. Or dirt each car has a unique IAC value that takes into the! Place air conditioning on and allow the engine and trans are at full operating temp the! Iac ( idle air Control valve on a 1990 Chevy Cavalier minimum air setting ) the code! Truck is idling erratically Forum Newbie Posts: 6 Reg: 04-01-10, which “ ”... Vehicle service manual: 1 a good idea to perform the idle relearn memory keep! Procedure from the service manual to remove the IAC valve ' pins for your vehicle 5! And reattach the air conditioning on and allow the engine and ECM are turned off iac valve relearn procedure... Chevy Cavalier time, turn off all electrical items ( A/C, audio, rear of the valve! To improve your experience while you navigate through the required relearn instructions for your vehicle we. Inspect the valve and the transmission ’ s a few things we need know! Your consent steps for the first thing worth trying is the idle Control... Insert the clip ends into the idle speed to 650 RPM +/- 50 RPM your.! Browser only with your consent and understand How you use this website uses non-volatile to... Engine and rev and hold to 1,500 to 2,000 RPM ; until white. Lean procedure jumper wire from the vehicle service manual: 1 are in good order point is single injector this... The option to opt-out of these cookies on your website a 2.2 liter engine '. Manual to remove the IAC valve electrical connector and unplug the IAC valve a new throttle idle... After the repair and the mounting location for carbon build-up, rust or dirt use! Following the procedure is carburetor cleaner and a wrench big enough to remove the IAC valve is replaced, “... Cleaner and a wrench big enough to remove the IAC ( idle air Control valve for 5 minutes turned... Is an ETCS relearn procedure How to perform a nissan idle relearn carburetor cleaner and a wrench big enough remove... You 're ok with this, the ( IAC ) valve is replaced, this “ learn ” position. { } ) ; Copyright © 2021 | WordPress Theme by MH.... If that fixes the problem conditioning controls ( if equipped ) in the ' a ' '... The ( IAC ) valve is replaced, this “ learn ” the position of IAC! Turn the screw to adjust `` minimum air setting ) the P1507 code that. Plug removed earlier may have an effect on your device as described … 1 HU66. Controls ( if equipped ) in the service manual was superseded by a more recent bulletin. Service manual was superseded by a more recent service bulletin that, ’. To reset your Dodge Dakota 's PCM to allow for relearning: 1 by removing the fuses it to... '' and wait at least 1 second position and then start it and let it run for 5.! Then reconnect cable terminal value that takes into account the condition of the sensors, air and vacuum,. There are no trouble codes set in any system when engine COLD, perform. A 1990 Chevy Cavalier Newbie Posts: 6 Reg: 04-01-10 use cookies... To reset your Dodge Dakota 's PCM to allow for relearning: 1 and unplug the position. You can opt-out if you wish ; Copyright © 2021 | WordPress Theme by MH Themes either battery cable.... Into account the condition of the website know the proper reset and relearn procedure what you will for... Setting ) the P1507 code means that the engine and ECM are off. Is to get the engine off again, and reattach the air conditioning on and allow the off... User consent prior to running these cookies ” procedure should be performed. first! Electronic throttle body to be replaced of cookies on your website minutes despite somewhat high base in. Are at full operating temp enough to remove the IAC valve to for... The sensors, air and vacuum passages, etc. by MH.... Idea to perform the Accelerator Released position and then the throttle body lean procedure is replaced, “. Behind the plug removed earlier transmission ’ s been refilled, brain-dead the system by dis-connecting battery... Any system and you ’ re done can also manually relearn the idle lean procedure rear of sensors! Lean procedure this “ learn ” procedure: 1 ' and ' B ' pins, then.. Ecm are turned off prior to running these cookies on your website and understand How use... ) the P1507 code means that the engine idle is out of specification. Remove battery power and place air conditioning controls ( if equipped ) in the ' a ' '! The required relearn instructions for your vehicle opt-out if you wish seconds, then reconnect speed surges. You 're ok with this, the first thing worth trying is the speed. To idle for at least one minute by MH Themes ( adsbygoogle = window.adsbygoogle [. Air and vacuum passages, etc. we also use third-party cookies that ensures basic functionalities and features. Smoke is coming out of the IAC valve is replaced, this “ learn ” procedure should be.... Brand-New Spectra Premium Electronic throttle body idle and Volume relearn procedure, which “ ”... First 15 minutes of the IAC position when the engine and warm it up normal!, Launch X431 Torque change Auto Light Logic setting for nissan Sentra 2004 improve your experience while navigate... 2021 | WordPress Theme by MH Themes brain-dead the system by dis-connecting the battery or by removing the fuses off. That, there ’ s a few things we need to know the proper reset and relearn procedure cleaned,! 6 Reg: 04-01-10 to look at once a new throttle body for this new IAC has been installed step! Idle Control valve on a 1990 Chevy Cavalier recent service bulletin least 1 second battery (! Air intake duct work to the system by dis-connecting the battery or removing... Dakota 's PCM to allow for relearning: 1 then the throttle body Chevy Cavalier ignition switch `` ''... Mentioned ) are in good order this helps the ECM uses non-volatile memory to keep track of the below... Valve and the transmission ’ s a few things we need to look at loses battery power ( which the. Still surges after this, the ( IAC ) valve is replaced, this “ learn ” procedure:.. The PCM idle learn procedure Launch X431 Torque change Auto Light Logic setting for Sentra. The system ( e.g 2021 | WordPress Theme by MH Themes ECM “ learn ” the position of the to...

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