cut wire, what is it?

[black_trucks bump]

ok on my 1992 jimmy vortec vin w cpi thers a grey wire that like taps into a wire that plugs into the coil pack, what i need to know is dose ne1 else have this little grey wire and if you do where dose it lead to because i just bought this truck and it dont run and the other end of this wire is cut and i would like to figure out where it is supposed to go

[black_trucks bump]

look next person that reads this alls im askin is dose ne1 else have a littel grey wire that taps into the coil pack wire on ther jimmy 90-95 plz reply if you do or dont again a littel grey wire that taps into wires that plug into coil pack plz reply either way nobody has yet and i need to know

[Blue Bowtie]

Since I don't have a '90-95 262 CPI to look at, you'll have to do the same thing I would do - Look at a schematic for the engien/ignition power to see where the gray wire is supposed to go.

[black_trucks bump]

its a 92 4.3 l cpi , and the schematic in my chiltons is garbage and ain't worth ne thing so do you know where i can find a good one online?

[alblogg]

Go to helminc.com these are the best manuals you can get.

[ericn1300]

i just went out and checked my 92 vortec and have no idea of what your refering too (a pic would be nice) but if GM put it there it must have a purpose. try disconnecting the battery, splicing it back together, reconnect the battery and give it the smoke test.

[alblogg]

Does your '92 have a factory tach?

[black_trucks bump]

what dose a tach have to do with anything , its digital dash no tach all im asking is ne1 who has a 90 to 95 jimmy 4.3 l vortec to check and see if they got a grey wire that taps into the wires that plug into the coil pack and if they do were dos it lead to plz someon post this is VERY IMPORTANT! plz post reply

[alblogg]

Got kinda touchy about the tach question hummmmm now I think I knew what the grey wire was.

[Chris Stewart]

Your coil has 1 big red wire, 1 small red wire and 2 small white wires...that's all.
There is no gray wire supposed to be connected to your coil or coil wiring.
There are gray wires however:
1 to the EGR valve & MAP sensor
1 from the oil pressure switch to the fuel pump with connections at the fuel pump prime connector (supposed to be a plug on it on the firewall near the ignition coil) fuel pump relay and the engine computer(ECM).

[BlazerLT]

Originally Posted by black_trucks bump

what dose a tach have to do with anything , its digital dash no tach all im asking is ne1 who has a 90 to 95 jimmy 4.3 l vortec to check and see if they got a grey wire that taps into the wires that plug into the coil pack and if they do were dos it lead to plz someon post this is VERY IMPORTANT! plz post reply

1.) Drop the attitude.

2.) Start typing properly and drop the use of (ne1, dose, plz) and other short forms. Continuing to use them will have everyone passing on helping you seeing they can't read anything you are saying.

3.) DO YOU HAVE A TACH! If you do it could be the wire that goes to the tachometer on the dash.

[alblogg]

That was the reason I asked him if he had a factory tac.

[Chris Stewart]

Sounds like someone tried to pull 12 volts from the ignition coil to run the fuel pump with the fuel pump prime wire. Should have burned the ignition fuse too.
The digital dash gets info from the digital dash module & ECM including RPM signal.