Little white/black stripe wire connecting switch boxes???

[gambler183gt]

Ive been trouble shooting a problem and will be going back out friday for another test run. 92 200XRI- I removed all the modules including the detonation module. Each switch box was connected to this module with a white/black striped wire on the top left lugs along with a jumper. I removed this module and was wondering if this jumper connecting the 2 boxes should also be removed? i checked the wiring diagrams and it doesnt look like this wire should even be there. It shows up on the water cooled reg motors,but not this one. Thanks Lee

[flabum1017]

Jumper should be left in place except while doing output tests.

[rpm racing]

It sounds like you are refering to the bias circuit between the switch boxes. You need it. If you remove that wire I think the timing advances WAY out.

[gambler183gt]

Yes it is the bias circuit jumper. I will test them tonight and put the jumper on after testing. I am just trying to get all bases covered before I go back out. I even hooked up the primer wire to the ecu to eliminate a lean condition. I replaced the stator-trigger and first pump. The only thing left will be the ecu. Thanks for the info. Lee