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

Starts then dies, no matter what I do

Thread Tools
 
Search this Thread
 
Old 06-30-17, 06:08 PM
  #1  
Junior Member

Thread Starter
 
Blinddd's Avatar
 
Join Date: Apr 2010
Location: east coast
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Starts then dies, no matter what I do

FC3S 88 rx7 N/A manual transmission latest engine from an 86 rx7 N/A manual transmission

Welcome folks, I've been in this thing's fuel pump, plugged back in the computer under the passenger floor (along with other connectors that control something or another. Spark plugs, spark plug wires, ignition coils, throttle position sensor, mass air flow sensor, fuses from both boxes, cleaned the grounds and where they bolt to, made sure the crank angle sensor was properly set, these are just off the top of my head.

I've searched the forums every time I come to work on the car to find tips or something else to check, but no matter what, it still dies. The only time it stays on is if I'm on the accelerator and even then, it doesn't always detect when I step on the gas. Either it's a very late response or no response at all (and stalls itself out). Friends have told me I have a vacuum leak, so I took apart the intake today, cleaned up, checked the lines, everything seems fine but this issue still persists

Help?
Old 06-30-17, 08:16 PM
  #2  
rotorhole
 
insightful's Avatar
 
Join Date: May 2017
Location: retired rotorist
Posts: 680
Received 70 Likes on 66 Posts
have someone keep it running while you spray for vacuum leaks.
Old 06-30-17, 08:41 PM
  #3  
Junior Member

Thread Starter
 
Blinddd's Avatar
 
Join Date: Apr 2010
Location: east coast
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Thanks, I'll try that
Old 06-30-17, 09:29 PM
  #4  
roTAR needz fundZ

iTrader: (1)
 
Join Date: Aug 2002
Location: Freeland, MI
Posts: 2,614
Likes: 0
Received 31 Likes on 31 Posts
this "latest engine", any idea if its actually a GOOD engine? or are we shooting in the dark?
Old 06-30-17, 09:35 PM
  #5  
Junior Member
 
Jennifer Whitfield's Avatar
 
Join Date: Mar 2017
Location: louisville
Posts: 7
Received 0 Likes on 0 Posts
Compression test?
Old 07-01-17, 02:02 AM
  #6  
Retired Moderator, RIP

iTrader: (142)
 
misterstyx69's Avatar
 
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,581
Likes: 0
Received 131 Likes on 114 Posts
there is a big rubber hose on that flexible snorkel pipe that goes to the AFM..Check that it is hooked up.
Also IF your AFM is not plugged in the car will start and die..over and over again,until it gets plugged in!
Old 07-02-17, 12:37 AM
  #7  
Junior Member

Thread Starter
 
Blinddd's Avatar
 
Join Date: Apr 2010
Location: east coast
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by lduley
this "latest engine", any idea if its actually a GOOD engine? or are we shooting in the dark?
Lol, it was a running engine (daily) before we pulled it from my friend's FC

**UPDATE**

Embarrassing but I mixed up two vacuum lines around those four connectors on the rat's nest. It is able to idle but that throttle response is now 50/50 in responding on time (or not).

I haven't gotten around to the compression test yet, and of course, I'm keeping an eye on that air flow meter haha

Also I noticed a "new" rumble and ticking sound coming from what sounds and feels like the rat's nest. Would anyone know if that might be part of my problem?




All times are GMT -5. The time now is 05:14 AM.