View Single Post
masraum masraum is online now
Back in the saddle again
 
masraum's Avatar
 
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,706
There are two main causes for backfire. The first is an exhaust leak. The second is unburned fuel off throttle.

The unburnt fuel should be taken care of in an '85 because the ECU should kill fuel into the cyl off throttle. Unless you keep your foot partially on the throttle or you have a leaky injector, this shouldn't be the problem.
__________________
Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa SOLD 2004 - gone but not forgotten
Old 10-31-2008, 07:33 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)