Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

RUNNING LIKE SH/T 1987S4

Thread Tools
 
Search this Thread
 
Old 09-06-2014, 04:29 PM
  #1  
potdog
.
Thread Starter
 
potdog's Avatar
 
Join Date: Sep 2011
Location: NOTTINGHAMSHIRE U/K
Posts: 305
Likes: 0
Received 0 Likes on 0 Posts
Default RUNNING LIKE SH/T 1987S4

Hi to all and thanks for all other answers to my posts. Well here we go again to day car driving ok later part of day it all started to go wrong pulled in retail park it went on to what felt like 4 cyl slipped it in to neutral and gave it some wright hard foot but it did no clear the miss fire left the car for 3/4 hr it started ok no miss fire drove 1 mile miss fir starts again not the first time had this problem change plugs last time what the **** up cheers .
Old 09-06-2014, 08:12 PM
  #2  
SMTCapeCod
Race Car
 
SMTCapeCod's Avatar
 
Join Date: Jul 2005
Location: Mechanochondriacism
Posts: 4,700
Received 22 Likes on 15 Posts
Default

My WAG would be coil or ignition amplifiers. Search for "limp home mode" or similar.
Old 09-07-2014, 03:49 AM
  #3  
potdog
.
Thread Starter
 
potdog's Avatar
 
Join Date: Sep 2011
Location: NOTTINGHAMSHIRE U/K
Posts: 305
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks are here any better coils than standard Bosch cheers.
Old 09-07-2014, 06:03 AM
  #4  
Nicole
Cottage Industry Sponsor
Lifetime Rennlist
Member
 
Nicole's Avatar
 
Join Date: Oct 2001
Location: Silly Valley, CA
Posts: 25,781
Received 150 Likes on 81 Posts
Default

If something breaks after 27 years, it doesn't automatically mean you need something better - sometimes you just need a replacement. I don't think many here have switched to different types of coils.

How old are your ignition and coil wires? You may want to start the car in the dark, open the hood, and spray a mist of water over the wires. Do you see fireworks?
Old 09-07-2014, 10:28 AM
  #5  
Bonton
Instructor
 
Bonton's Avatar
 
Join Date: May 2013
Location: Austin, TX!
Posts: 141
Likes: 0
Received 0 Likes on 0 Posts
Default

check coil wires, same thing happened to me.
Old 09-07-2014, 11:27 AM
  #6  
Jfrahm
Addict
Rennlist Member

 
Jfrahm's Avatar
 
Join Date: Mar 2002
Location: Boulder, CO
Posts: 6,511
Likes: 0
Received 127 Likes on 113 Posts
Default

I have seen one bad coil in at least 100 cars over the years and it was on a Ford. Plug wires and coil wires on the other hand...

-Joel.
Old 09-07-2014, 11:16 PM
  #7  
FiveElements
Racer
 
FiveElements's Avatar
 
Join Date: Oct 2012
Location: San Ramon, Calif.
Posts: 382
Likes: 0
Received 0 Likes on 0 Posts
Default

You probably have some loose wires, loose fuses or bad connections at the computers in the passenger foot area. You could have bad distributor caps, as the center connection goes bad in those too under high heat. Re-seat all the fuses, relays, computer connections and check your ignition trigger under the air box for damage or loose connection.
Old 09-08-2014, 12:39 AM
  #8  
WallyP

Rennlist Member
Rennlist Site Sponsor

 
WallyP's Avatar
 
Join Date: Jun 2001
Location: Acworth, GA
Posts: 6,469
Likes: 0
Received 11 Likes on 11 Posts
Default

Most common cause seems to be faulty coil wire or connection. Check both coil wires very carefully, making sure that no part of the wire touches metal or another wire harness. Check inside the coil and ends of wire for corrosion or signs of burning.

If you drive the car with fuel but no ignition on four cylinders, the cat can overheat and burn the car to the ground.
Old 09-10-2014, 12:53 PM
  #9  
potdog
.
Thread Starter
 
potdog's Avatar
 
Join Date: Sep 2011
Location: NOTTINGHAMSHIRE U/K
Posts: 305
Likes: 0
Received 0 Likes on 0 Posts
Default

Fixed one ignition amplifier
Old 09-10-2014, 01:12 PM
  #10  
Randy V
Addict
Lifetime Rennlist
Member
 
Randy V's Avatar
 
Join Date: Jun 2000
Location: Insane Diego, California
Posts: 40,449
Received 97 Likes on 65 Posts
Default

And...did it resolve the issue?
Old 09-10-2014, 07:19 PM
  #11  
potdog
.
Thread Starter
 
potdog's Avatar
 
Join Date: Sep 2011
Location: NOTTINGHAMSHIRE U/K
Posts: 305
Likes: 0
Received 0 Likes on 0 Posts
Default RUNNING LIKE SH/T

Yep one new amplifier fixed the problem.



Quick Reply: RUNNING LIKE SH/T 1987S4



All times are GMT -3. The time now is 01:17 PM.