Tach questions...

[Foxlover]

I swapped my 3.8 for the HO 5.0 and kept the wiring harness from the computer to the engine but not from the computer to the instrument cluster. So when I swapped my old cluster that didn't have a tach and a volt gauge for the cluster that came with the 5.0, the original wiring didn't have the wires for them obviously. I had to rearrange the wires in the existing plugs to make everything else work. So my question is, does anyone know what I could do to get the both to work so I didn't have to get an aftermarket tach. Because my car is the El Cheapo version and it totally looks like a sleeper and I would like to keep it that way as much as I can. I really appreciate any help.

 

[ID89GT]

What year is your car, and what year is the engine and harness the 5.0 is from? That might help get you some answers

 

[Foxlover]

My car's a 92 and the engine and the harness is from a 91. I hope it helps get some answers because you're the only to even say anything so far...

 

[liljoe07]

Doesnt the 91 only have one larger connector by the brake booster where the dash harness meets? and the 92 dash harness has two large connectors?

I didnt think the 91 engine harness was compatable with the 92 dash harness.

 

[ID89GT]

Ya I think 91 can only use a 91 harness? But I am not sure

 

[Chrome_Rust]

it's as follows
87-89
90 only
91-93

I thought you said you swapped from a 3.8 to a 5.0? they never offered a V6 in the 87-93 mustangs....

 

[Foxlover]

92 T-Bird. It's not exactly a Mustang. But it's definitely a sleeper. Sorry to confuse you. I don't know about the plugs though.

 

[Foxlover]

I'm really looking for an 87-93 Notchback with a 4 banger. That's my dream car. But till that happens I've got the bird as a toy.