Wednesday, October 19, 2011

Nissan Altima Throttle Body Relearn

If you have Throttle Body Relearn problem with Nissan Altima 1998- 2006 .




If someone have open or disconnect your Throttle body , then your idle will be out . It will be very high maybe 1500-2000 or more and some time it will flactuating,it hapen with me.
Normal Idle of Nissan Altima is 700 to 750 RPM
I have altima 2005 2.4 4 cylender, One car shor clean my Throttle body then my RPM goes high and going up and down 1500 to 2200 rpm.
If you have same problem then follow, otherwise go to Nissan Computer shop for reprogram for relearn the Throttle body.
Manually procedure for Throttle Body Relearn
you can do free at home. if you go to Nissan Shop they will charge $100 or more to relearn the Throttle body.
Step #1
ENGINE COLD
Perform "Accelerator Pedal Released Position Learning" .
Make sure that accelerator pedal is fully released.
Turn ignition switch “ON” and wait at least 2 seconds.
Turn ignition switch “OFF” wait at least 10 seconds.
Turn ignition switch “ON” and wait at least 2 seconds.
Turn ignition switch “OFF” wait at least 10 seconds.
WAIT over 10 seconds before this next step.
Perform "Throttle Valve Closed Position Learning" .
Make sure that accelerator pedal is fully released.
Turn ignition switch “ON”. WAIT EXACTLY ONE SECOND SHARP. Turn ignition switch “OFF”
THEN wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound. - Very hard to hear anything at all. Just believe this is happening by faith.Now, here's the big change
Start engine and warm it up to normal operating temperature.AND RIDE YOUR CAR FOR AT LEAST 15 MINUTES, this will make for correct operating temperatures to happen within the engine for the following steps. Warming your car in the garage in the morning aparently does not cut it.

Check that all items listed under the topic “PREPARATION” (previously mentioned) are in good order.
Step # 2
Turn ignition switch “OFF” and wait at least 10 seconds.
Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
Repeat the following procedure quickly five times within 5 seconds.
Fully depress the accelerator pedal. Fully release the accelerator pedal.
Wait 7 seconds
Fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops blinking and turns ON.
Fully release the accelerator pedal within 3 seconds after the MIL goes off. Start engine and let it idle. THE ENGINE MUST BE STARTED WITHIN THE 3 SECONDS AFTER IT STOPS BLINKING, THATS HOW THIS LIGHT GOES OFF. THE SERVICE MANUAL DOES NOT STATE THIS, BUT IF YOU LOOK AT THE DIAGRAM WHERE THE ENGINE LINE ON-OFF IS, IT CLEARLY SHOWS YOU SHOULD TURN IT ON WITHIN THESE THREE SECONDS. This is where your engine will start to learn the correct idle settings
Wait 20 seconds.
Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.

Nissan Technical Bulletin No.NTB93-117

6 comments:

Legal o blog, a nissan frontier é boa aproveite para comprar pneus

mill light does not flash why is this?

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