ignition module
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Tuned
Joined: Mar 2007
Posts: 317
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From: Sabin, Mn
ignition module
hey guys. I know this aint a car forum but i just bout a 1980 ford thunderbird with the 255 v-8 in. this last weekend i had some ignition problems. the vehicle has he yellow grommet ignotion module. what ended up being the problem was was the third connector is hooked to a vaccum sensor by the looks of it. I disconnected the sensor from the ignition module and runs fine now. Am I gonna hurt the ignition module with it disconnected. the car is not feedback carbed. it's a plain jane motorcraft 2bbl carb and a regular durapsark distributor. Another question is, are the yrellow and blue grommet ignition modules wired different??? I am told u cant interchange the modules. Y is that?????
Moderator
Joined: Jan 2001
Posts: 56,990
Likes: 2,740
From: Virginia
That may be a barometric pressure sensor or something like that, I am not sure. This was their first attempts at modifying the timing for different driving conditions. I am not up too much on the different modules, but I would assume you have extra wires going to your module for the extra sensor.
Post Fiend
Joined: Jul 2004
Posts: 8,786
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From: Northern California
1980 was the first year of DS-III in cars. DS-III modules were Yellow Grommet If I recall correctly.
Numberdummy has the parts manuals for the cars as well.
They are not interchangeable.
Numberdummy has the parts manuals for the cars as well.
They are not interchangeable.
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 7,298
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From: Southern California
What I know for sure is the DS-III modules have a brown grommet only. DS-III also called EEC-III, was only produced in California cars and light trucks with 302 and 351 engines.
The yellow grommet is I believe a DS-II module made for high altitude. So that would be a BMAP sensor which the DS-III has as well.
The yellow grommet is I believe a DS-II module made for high altitude. So that would be a BMAP sensor which the DS-III has as well.
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Tuned
Joined: Mar 2007
Posts: 317
Likes: 0
From: Sabin, Mn
ok. so the really only difference between the two modules is one has a ignition retard of sorts brought on by a map/vacum sensor. has anyone ever swapped out the three connector module for the blue????????? did it work???
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