Go Back   Infamous Nissan - Hardbody / Frontier Forums > Model Specific > Hardbody Forum (D21)

Reply
 
Thread Tools Display Modes
Old 06-03-2022, 02:13 AM   #11
smith
 
Join Date: Feb 2020
Location: Arizona
Posts: 62
Vehicle: 93 nissan d21 2WD KA24E Manual
Thanks: 12
Thanked 2 Times in 2 Posts
Default

I noticed not all fsm's are the same- 93 ka24e. 161 titled "Idle Air Control System". Lists: Cam position, temp, Ignition, closed tps, Neutral Position, ac, power steering, Speed sensors plus batt- contribute to idle air. Neutral Safety switch is not the same switch. Something can be worn in trani and not allow continuity in Position switch- tested in vehicle (it needs to be) or can't tell if it's working- continuity in neutral and no continuity in gear. So, I'm guessing no one's noticed this Position sensor and must not be a problem until they put a heating side to it (96??).
smith is offline   Reply With Quote
Old 06-03-2022, 02:41 AM   #12
jp2code
Software Developer
 
jp2code's Avatar
 
Join Date: Dec 2011
Location: Longview, TX [USA]
Age: 52
Posts: 11,258
Vehicle: 94 LB 2x4 Manual VG33e
Thanks: 1,847
Thanked 1,836 Times in 1,598 Posts
Default

Quote:
Originally Posted by smith View Post
Something can be worn in trani and not allow continuity in Position switch- tested in vehicle (it needs to be) or can't tell if it's working- continuity in neutral and no continuity in gear. So, I'm guessing no one's noticed this Position sensor and must not be a problem until they put a heating side to it (96??).
Look at the picture of the Neutral Switch that I posted twice. It plugs into your transmission. When the transmission is in Neutral, the button is out. When the transmission is in gear, the button is pushed in.

If you remove the switch, you can easily test it.

If it works, that's not your problem. If it doesn't work, replace it.
__________________
Joe (not a mechanic!) • Don't have an account? EMAIL ME
Factory Service Manuals: https://www.nicoclub.com/FSM/Hardbody/
Walk-through: Checking Nissan Trouble Codes
1994 VG30E to VG33E with H256 Cams

jp2code is offline   Reply With Quote
Thanked by:
Balkins (06-12-2022)
Old 06-03-2022, 03:11 AM   #13
smith
 
Join Date: Feb 2020
Location: Arizona
Posts: 62
Vehicle: 93 nissan d21 2WD KA24E Manual
Thanks: 12
Thanked 2 Times in 2 Posts
Default

Ok, I saved time and tested in truck. It's a prob. I'll buy after I test some more things. Thanks
smith is offline   Reply With Quote
Old 06-12-2022, 11:56 AM   #14
Balkins
1994 nissan d21, XE, 2wd
 
Join Date: Apr 2016
Location: florida
Posts: 85
Vehicle: 1994 nissan d21, XE, 2wd, automatic, 4 cly
Thanks: 96
Thanked 11 Times in 10 Posts
Default

Appreciate all the posts here. This Throttle Body is a PIA. I rebuilt mine and found most of the parts on Rock.

Here's a tool Rock has that is used to test injectors...i haven't bought it but its a new addition to test the motor.

I did notice a big different when i changed the fuel injectors.

LINK


Cheers
Balkins is offline   Reply With Quote
Thanked by:
jp2code (06-12-2022)
Old 06-12-2022, 07:13 PM   #15
PorknBeans
 
Join Date: Dec 2019
Location: Where I can see the air I breathe...
Posts: 844
Vehicle: 1997 XE King Cab with 3 pedals, KA24E & 2WD, Y’all
Thanks: 82
Thanked 251 Times in 209 Posts
Default

There is a base gasket for the throttle body that requires to be changed periodically. It can be the source of the small intake leak that’s causing your high idle issue.

My ‘97 D21 uses 6mm Allen socket Heads to hold down the throttle body. Remove the coolant line, vacuum lines etc. and change out the base gasket. My ‘89 D21 had an air out intake leak with a high idle and adjusting the IACV-ACC valve never helped it.

Changing out the base gasket did.
__________________
PorknBeans is offline   Reply With Quote
Thanked by:
Balkins (06-12-2022), smith (06-13-2022)
Old 06-13-2022, 03:21 AM   #16
smith
 
Join Date: Feb 2020
Location: Arizona
Posts: 62
Vehicle: 93 nissan d21 2WD KA24E Manual
Thanks: 12
Thanked 2 Times in 2 Posts
Default

Quote:
Originally Posted by PorknBeans View Post
There is a base gasket for the throttle body that requires to be changed periodically. It can be the source of the small intake leak that’s causing your high idle issue.

My ‘97 D21 uses 6mm Allen socket Heads to hold down the throttle body. Remove the coolant line, vacuum lines etc. and change out the base gasket. My ‘89 D21 had an air out intake leak with a high idle and adjusting the IACV-ACC valve never helped it.

Changing out the base gasket did.
Thanks. Mine has 2 gaskets (spacer) but never have touched that tan gasket. Does it need changing? And I know of only 1 o-ring for the MAF- is that all there is?
smith is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT. The time now is 12:09 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.