I see the connector-black and yellow-I see mine has a black wire jumper but am I missing a yellow jumper wire? 1992 v12-the black wire does not move so it looks like this is not a wire you can disconnect...HELP!

 

Any chance of a picture of this mythical connector creature ?

I want to be able to find mine if I need it

 

Give me a couple of days (my car is masked for paint) and I will take a photo of how I jumpered mine and post.

 

a picture would tell the story..Anyone???

 

Here is the ignition jumper, it's on the LH side of the car my plug was missing so I just used a bit of wire as I will be replacing the ECU with an aftermarket soon.

 

that plug is for the mapping of the marelli ecu , if the loop is fitted then the engine map is for 95 ron fuel or higher ,

if the loop is removed, the ecu is mapped to use 92 ron fuel ,

it essentially tells the ecu what fuel is available to you where you fill up

so if your using 92 ron fuel , remove the loop , which is probably why it wasnt plugged in to start with , and your engine should run better and cooler

BB

 

and with this connector bypassed what will it do for performance? My 92 is already a slug and gets less than 15 miles to the gallon.

 

the mapping for different fuel types is essential for good mpg and performance,

if you have the wrong map selected, then you wont get the correct timing and fuel injected for correct performance

as i said, if you have 95ron fuel or better, leave the loop in , if its less than 95 ron fuel at your pump , you must remove the loop

BB

 

my 92 has a black jumper wire but it does not look like it can be removed-some have talked about a yellow jumper wire-is the black wire in place on mine the jumper wire or is there another wire to be jumped? I see 3 slots in the top of the connector..

 

here are my pics

 

BB is correct, the later Marelli V12's were high compression (12-12.5:1) depending on market. I think mine is 12.5, and is on the verge of pinging most of the time. If you run lower than 95RON I would remove the link. We have 98 here so I leave mine all of the time. I have never run it on anything but 98.

 

Unjumping involves unplugging. The loop at the top is not a jumper wire as far as I can tell.

 

After reading the posts I went out and found my jumper/connector and removed it.

Should there be a noticeable difference?
Should it be immediate or over a period of time?
I'm not sure I could detect any change in performance.
Is there a problem if I don't feel a difference?
I only use premium gas fwiw.

 

If you are using premium the jumper should be installed. All this jumper does is adjust the ignition timing, if other things are not up to scratch then there will be no difference in performance.

 

Hello
looking for reason of idle up-down constantly.("p" position)
Your attention and cooperation in this matter will be greatly appreciated.
Daniel

 

Your cardoesnt have the marelli ignition, so that won't be here...