So my set up before today was a greddy water temp gauge, greddy boost gauge, and a greddy turbo timer. All of which was wired & installed by a "mechanic".
I just got a Apexi turbo timer and I decided to istall it today. I had no prob installing the turbo timer but when I was installing I noticed a lot of wires tapped into other wires and wires that were cut and just hanging there. After I finished installing I noticed the turbo timer was working fine. All functions were working properly, and when I took the key out my motor stayed running like it was supposed to.

It wasn't until I went to move my car that I noticed my Greddy water & boost gauge were not working. The needles were down as if there was no power to them. I took my lower dash apart again, and noticed that I had cut a red and orange wire that was tapped into greddy turbo timer harness. I went to look at the manuals and saw that I had cut the constant 12v (orange wire) and the 12v ignition switch (red wire). I went and tapped the orange and red wires to its appropriate locations and when I turned on the car the needles on both the boost and temp went completely to the right side and stopped. What the hell did I do. I now know that the both gauge power wires are tapped together.

I took the wires off that I had tapped and my gagues are now stuck on maxed out needle position. Does anyone know what I did wrong and how to correct?

Thanks

Ian

 

over night bump

 

recheck were you tap for the 12+, and 12+ switched

 

i rechecked and all seemed fine. what would make my gauges do that?

 

they are grounded out

 

what do you mean?

 

Up

 

i did a similar thing with my electronic greddy boost gauge (wrong wire!) got the gauge stuck at over 2 bar! thaught i'd f****d it but a light tap to the side of the gauge with everything disconnected and the needle dropped back to normal! Rewire and try again!

 

sounds good to me. thanks!!!!
do you know why the needle jumped? i am tring to figure out what went wrong. from my knowledge i wired everthing correctly. what wire/ tap make the needle jump?

 

tried the "light tap" it didnt do anything. anyone else with some suggestions?

 

Just check the positive and negative connections. I accidentally unground my gauges whenever I work under the dash it seems like. If its not that, i don't know.