Thread: Engine Miss -- 1973 280sel 4.5
View Single Post
  #1  
Old 05-24-2004, 05:20 PM
michaelsellars michaelsellars is offline
Registered User
  
Join Date: Jan 2004
Location: Franklin, Wisconsin
Posts: 40
Engine Miss -- 1973 280sel 4.5
Hello again,

Recap: Engine missing on four cylinders. Replaced plugs,wires,cap,rotor & trigger points. Compression, dwell & timing all good.

Update: While idling: (1) Fuel pressure only 18psi -turning adjustment screw on fuel regulator has no effect. (2) Mixture adjustment screw on ECU - turning it through entire range has no effect on engine. (3) Low vacuum - 19Hgi @ distributor vacuum advance, 10Hgi @ door lock vacuum line, 5Hgi @ MAP sensor.

I hope this info can enable those more experienced than I to point me in the right direction. Thanks -Mike
__________________
1973 280SEL 4.5
Last edited by michaelsellars; 05-24-2004 at 10:10 PM.
Reply With Quote