i have an HKS turbo timer i just bought off my friend.. he had it in his 95 gsx.. its going in my 95 gst... i know what all the wires are and what they mean... one thing... there are two blue wires... the instructions say a blue wire is for the speed sensor.. but there are two??? any idea??? any input would be appreciated.. tahnks guys.

 

It doesn't say anything about what another blue wire could be for? Perhaps BOTH are for speed sensors just the option of having a secondary speed sensor input?

 

see thats why i was confused.. i believe in my ecu there is only one speed sensor wire... it did say something about splicing the two blue wires from the turbo timer.. but does that make sense... basically i dont wanna go splicing random **** and frying it... damn.. if you can help anymore please do.

 

K it makes perfect sense actually. It's set up just in case you DO have 2 speed sensors. It'll take seperate inputs. Splice the 2 together and you'll STILL be getting the 2 inputs but it'll only be using the one sensor. Make sense? Basically it's like connecting the hot wire for 2 different light bulbs together to run them both off the same battery. The battery = your speed sensor the wires = your 2 blue wires. Understand now?

 

http://www.vfaq.com/index-main.html

click on electrical and find turbo timer install

 

muhahahaha vfaq wins again, plus you got to rember things like turbo timers, piggy back units, and headunits are a unervisal install item. Now two cars are alike...except for the talong and eclipse , j/p, but seriously every car is amde differently. For example when hooking up the safc to a dsm there is something called the blue wire mod, on nissans there is a 3rd o2 sensor and some kids hook the "blue wire" up to their 2nd o2. Its debatable weather it helps on not personally I dont see how making the safc get two readings from the same o2 sensor helpfull. If it reads both 4.6 volts.... its still 4.6 volts even if it were only reading one... but what ever.

 

It's not that so much as a way of keeping the system in check. If you have 2 inputs for the same type sensor (If the vehicle is equiped with 2) the computer can compare the 2 readings and give it a margin of error that is acceptable and possibly notify you of something awry if those specs are too far apart.