Auto trans - Idle speed too high - Nissan Forum
B13 91-94 chassis 1991-1994 Sentra and 1991-1993 NX

 
LinkBack Thread Tools Display Modes
#1 Old Jan 3rd, 2007, 08:41 PM
Nissan Enthusiast
 
WesTnine9's Avatar
 
Join Date: Mar 2006
Location: Chicago
Posts: 33
Exclamation Auto trans - Idle speed too high

My b13 has an auto trans and it's idle speed seems a bit too high. How would I go about lowering my idle speed? -Thanks

security is a superstition
Sponsored Links
Advertisement
 
#2 Old Jan 4th, 2007, 10:42 AM
Because Size Matters
 
HATEnFATE's Avatar
 
Join Date: Dec 2002
Location: In My Cage......
Posts: 1,256
Send a message via AIM to HATEnFATE
There is an idle adjustment screw on the intake(not sure where it is on the 1.6 but on the 2.0 it's on the right hand side of the car) adjust this screw accordingly to set your idle speed.


directions
Disconnect the throttle sensor harness connector. Start the engine and warm it up until the water temperature indicator points to the middle of the gauge.

Operate the engine at 2000 rpm for 2 minutes under no load.

Race the engine 2 or 3 times under no load, then check the idle speed. Idle speed should be: USA M/T vehicles only. 650 ±50 rpm. Canadian M/T vehicles only. 750 ±50 rpm. All models with A/T transmissions. 800 ±50 rpm (in "N" position). If not correct, proceed to step 4.

Race the engine 2 or 3 times under no load then idle.

Verify ignition timing is 10°±2°B.T.D.C.

Idle Air Adjusting (I.A.A.) Unit

Turn the idle adjusting screw (located on the idle air adjusting unit) to obtain the correct idle speed. Idle speed should be: All M/T 600 ±50 rpm. All A/T 725 ±50 rpm.
Turn the engine off.

Reconnect the throttle sensor harness.

Race the engine 2 or 3 times under no load then idle. Idle speed should be: USA M/T vehicles only. 650 ±50 rpm. Canadian M/T vehicles only. 750 ±50 rpm. All models with A/T transmissions. 800 ±50 rpm (in "N" position).

If not correct proceed to step 11.

Check the A.A.C. valve and harness, repair or replace as required.

The ECM may be the cause of a problem. This however is rarely the case.

I miss my twins...R.I.P. (91 and 92 SE-R)

J

Last edited by HATEnFATE; Jan 4th, 2007 at 10:49 AM.
Reply

  Nissan Forum > Sentra, Pulsar, NX, B14 200SX > B13 91-94 chassis

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Nissan Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



  Similar Threads
Thread Thread Starter Forum Replies Last Post
QR25DE zellx2004 Frontier 3 Aug 4th, 2009 07:11 PM
High idle rpm after new NGK wires, plugs, dist cap. MickeyKnox General Altima/Stanza discussion 2 Aug 18th, 2006 06:42 AM
93 N/A high idle speed AAC cleaning? thunderball Z32 Chassis 300ZX 4 Jul 19th, 2005 10:54 AM
idle speed rusty A32 1995-1999 Chassis 2 Jul 3rd, 2005 08:29 AM
cannot adjust high idle a-game B11/B12/KN13 82-90 chassis 8 Mar 16th, 2005 06:26 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On