General Rotary Tech Support Use this forum for tech questions not specific to a certain model year

86 fc idle issues!!!!!!!

Old 04-09-13, 10:37 PM
  #1  
Full Member
Thread Starter
 
jetalijr's Avatar
 
Join Date: Feb 2011
Location: shreveport
Posts: 29
Likes: 0
Received 0 Likes on 0 Posts
86 fc idle issues!!!!!!!

I have a fc it's the s4 motor. I recently took my vacuum nest off my motor. I also replaced the clutch at the same time doing so. Well when I put the motor back in ran my vacuum and blocked off what was suggested in the guidelines, it runs and starts with no problems.

Only issue is it revs at like 3100 rpms, And doesn't let off. It's kinda hard to explain. Some times it pulsates between 1500-3000 rpm. I switched tps with my other car(it's not new) and it did the same thing. I unplugged the tps and still did the same.

I also adjusted my crank angle sensor, the only thing that does is raise the rpm's even more. It also does this weird quick vibration when u get on the gas gradually.

If anyone have any suggestions on what it could be Please help! This is my first rotary. I'm trynna learn as much as I can about it.
Old 04-11-13, 06:35 AM
  #2  
Full Member
Thread Starter
 
jetalijr's Avatar
 
Join Date: Feb 2011
Location: shreveport
Posts: 29
Likes: 0
Received 0 Likes on 0 Posts
Bump
Old 04-11-13, 02:22 PM
  #3  
Moderator

iTrader: (1)
 
satch's Avatar
 
Join Date: Jun 2005
Location: tulsa,ok.
Posts: 11,738
Received 11 Likes on 10 Posts
Tps's are meant to be adjusted to 1 volt w/the engine fully warmed. And recheck your plumbing as it appears the engine is getting too much air. Also, make sure the AFM flapper door is not stuck. Make sure the throttle plates move freely. Did you happen to remove the BAC, and if so, did you block off the air supply hose that fed it?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rgordon1979
3rd Generation Specific (1993-2002)
40
03-15-22 12:04 PM
barkz
Power FC Forum
37
11-21-20 09:34 AM
troym55
3rd Generation Specific (1993-2002)
23
05-25-16 12:42 PM
83revival
New Member RX-7 Technical
4
09-03-15 10:42 PM


Thread Tools
Search this Thread
Quick Reply: 86 fc idle issues!!!!!!!



All times are GMT -5. The time now is 08:29 AM.