View Single Post
  #54 (permalink)  
Old 07-29-2009, 10:37 PM
iraq_vet_x2's Avatar
iraq_vet_x2 iraq_vet_x2 is offline
Senior Member
 
Jeep :
Year :
Lift :
Tires :
YJ Wrangler
1989
3.5"+1" BL
33x12.5 R15
    
Real Name: Aaron
Join Date: Nov 2008
Location: Fort Polk, LA
Posts: 109
Re: TFI ignition upgrade

Terry, I did the upgrade with the E92 coil about a two months ago in my 89 4.2 and its been running great until today. The Jeep died on me while I was on my way back from work. A co-worker and I pulled it back home and I took the multimeter to it. Zero Volts at the pigtail wires with the key off, then 11ish volts with the key on and cranking. I also put my timing light on the wire from the coil to the distro and got no flashes.

Gotta be a bad coil already right?

I put the old coil back on there with the new cap, rotor, wires and plugs gapped at 45 and that didn't work either. Should the old coil have made those plugs fire, or was the gap to much for it to overcome?

Also, is 11ish volts enough to run the coil?
__________________
'89 4.2L, NV3550, TFI, All Working Emissions

Last edited by iraq_vet_x2; 07-29-2009 at 10:46 PM..
Reply With Quote
View Public Profile Send a private message to %1$s Show iraq_vet_x2 gallery