Go Back   Infamous Nissan - Hardbody / Frontier Forums > Tech Area > Engine and Drivetrain

Reply
 
Thread Tools Display Modes
Old 11-16-2015, 06:24 PM   #1
poboy536
 
poboy536's Avatar
 
Join Date: Jun 2015
Location: midland, tx
Posts: 16
Vehicle: 2000 frontier
Thanks: 15
Thanked 0 Times in 0 Posts
Default loss of power

I have a 1993 D21 KA24e motor; 2wd. It has run like a top for the last year, plenty of power (within reason) and all of a sudden it just started bogging down when you give it gas to go. The more gas you give it, the slower it will go. It feels like the timing is retarded, but it is advanced as the distributor will allow. I have replaced: plugs; rotor; cap; wires; fuel filter; changed oil; cleaned throttle body and checked all wires, cant find anything wrong. I has 185,000 miles, doesn't smoke idles relatively smooth(normal) and up to about half throttle it will pick up. If I floor it from a dead stop, Big Show could probably keep it from moving if he held the tailgate. Wont spin tires on wet asphalt even now. If someone has solved a puzzle like this I would be grateful for an answer before it gets me runover.
poboy536 is offline   Reply With Quote
Old 11-16-2015, 06:40 PM   #2
street_rulerr
 
Join Date: Nov 2015
Location: West Coast
Posts: 2,437
Vehicle: 1996 4x4 5spd
Thanks: 0
Thanked 229 Times in 214 Posts
Default

make sure the rotor didnt come loose. had the screw back out once and had a really similar problem.

if you had a dead cylinder, like a bad plug or wire it would run incredibly rough and not just sputter. thus id lean towards really backed off ignition timing somehow.
street_rulerr is offline   Reply With Quote
Thanked by:
poboy536 (11-17-2015)
Old 11-17-2015, 11:33 PM   #3
poboy536
 
poboy536's Avatar
 
Join Date: Jun 2015
Location: midland, tx
Posts: 16
Vehicle: 2000 frontier
Thanks: 15
Thanked 0 Times in 0 Posts
Default loss of power

update... took the seat out and did the diagnostic test and got a 55 several times so its not showing any error codes. It is across the board loss at all rpms. If you want to go you have to make it downshift or it will it will just go blahhhh. Of everything I replaced trying to fix it, never phased it in any way.
poboy536 is offline   Reply With Quote
Old 11-18-2015, 01:43 AM   #4
alabama_lowlife
Owner and Administrator
 
alabama_lowlife's Avatar
 
Join Date: Sep 2008
Location: jack, alabama
Age: 42
Posts: 10,790
Vehicle: 2012 370Z, 1970 Datsun 521, 1995 Nissan Hardbody x2
Thanks: 1,094
Thanked 2,227 Times in 1,828 Posts
Default

Have you checked the timing with a timing light? Should be at 10 degrees BTDC. It's not something that should suddenly change, but the fact that it's advanced as far as the distributor will allow tells me it's not set correctly.
__________________
alabama_lowlife is offline   Reply With Quote
Old 11-18-2015, 01:59 AM   #5
ahardb0dy
The Post Count Whore
 
ahardb0dy's Avatar
 
Join Date: May 2014
Location: Sorrento, Florida
Age: 56
Posts: 7,990
Vehicle: 2017 Nissan Frontier Desert Runner
Thanks: 71
Thanked 1,027 Times in 932 Posts
Default

agree the distributor should not be adjusted all the way to one side.

What plugs and wires did you use? Had a problem on my former sentra with auto parts store wires, car would bog like crazy, replaced the plug wires with OEM and it never did it again.
__________________
My name is Tony and I'm a Infamousaholic

Current truck - 2017 Nissan Frontier Desert Runner ,

(formerly owned: 1993 Nissan Hardbody king cab 2wd, 90 Nissan Sentra, 94 Nissan Pathfinder SE 4x4, 05 Nissan Titan, 87 Nissan SE-V6 4x4 king cab, 94 Infiniti Q45t & 80 Datsun 310GX )
ahardb0dy is offline   Reply With Quote
Thanked by:
poboy536 (11-18-2015)
Old 11-18-2015, 02:44 AM   #6
Fanophins
 
Join Date: Feb 2012
Location: Lake Worth Florida
Posts: 982
Vehicle: 95 Nissan Hardbody SE 4x4 king cab
Thanks: 158
Thanked 80 Times in 62 Posts
Default

O2 sensor will go bad without throwing codes a lot. Since it has the last say as far as spark and fuel delivery.... Plus if it hasn't been change in a while it's probably toasted. Good Luck!!!
__________________
Originally Posted by cadillacdude1975 View Post
if you can wipe your ass, chew gum and send a text message at the same time, you can repair one of these hardbody AC systems.
Fanophins is offline   Reply With Quote
Thanked by:
poboy536 (11-18-2015)
Old 11-18-2015, 09:20 PM   #7
street_rulerr
 
Join Date: Nov 2015
Location: West Coast
Posts: 2,437
Vehicle: 1996 4x4 5spd
Thanks: 0
Thanked 229 Times in 214 Posts
Default

frankly we dont know about ignition timing yet and thats king here.
street_rulerr is offline   Reply With Quote
Old 11-18-2015, 10:50 PM   #8
Reserector
the Flaming Marshmallow
 
Reserector's Avatar
 
Join Date: Oct 2015
Location: Laurel, MS
Posts: 2,099
Vehicle: '86.5 Nissan HB KC 4x4 5.3V8
Thanks: 129
Thanked 590 Times in 463 Posts
Default

Vacuum leak is my first guess. If it has a leak, it won't build vacuum near idle. That means it will have more air than it should, making the mixture lean.

FWIW, the spark has to be retarded at low rpms to create the torque you need for acceleration. As RPMs rise, it advances so it can rev out.
Reserector is offline   Reply With Quote
Old 11-18-2015, 11:00 PM   #9
IssaNissan
 
IssaNissan's Avatar
 
Join Date: Aug 2014
Location: Baton Rouge La
Posts: 539
Vehicle: Nissan Hardbody 1993
Thanks: 34
Thanked 66 Times in 57 Posts
Default

Quote:
Originally Posted by alabama_lowlife View Post
Have you checked the timing with a timing light? Should be at 10 degrees BTDC. It's not something that should suddenly change, but the fact that it's advanced as far as the distributor will allow tells me it's not set correctly.
Bama made the same suggestion to me back in the day, and I played with this and that for weeks, to find in the end,,,,,my timing chain jumped a few teeth and caused me to have to fully advance my distributor.

But when it jumped the last time,,,,,I could advance no more,,,,and ended up doing a timing chain job.

PS,,,,,,,Your issues sound identical to mine,,,,,but you need to get a timing light on it ASAP before your valves kiss your piston tops. I also had bad chain rattle from destroyed guides.
IssaNissan is offline   Reply With Quote
Thanked by:
poboy536 (11-18-2015)
Old 11-18-2015, 11:06 PM   #10
poboy536
 
poboy536's Avatar
 
Join Date: Jun 2015
Location: midland, tx
Posts: 16
Vehicle: 2000 frontier
Thanks: 15
Thanked 0 Times in 0 Posts
Default loss of power

Quote:
Originally Posted by alabama_lowlife View Post
Have you checked the timing with a timing light? Should be at 10 degrees BTDC. It's not something that should suddenly change, but the fact that it's advanced as far as the distributor will allow tells me it's not set correctly.
I honestly cant find a place to time it. I agree it should not be advanced all the way, but it wasn't too much time it ran great. Can the timing chan be stretching and taking time out of it? Oh, I can scratch MAF sensor off the list wasn't that either. Someone said O2 sensor... going to look into that.
poboy536 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 04:33 AM.


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