Hello fellow s2kers! I just purchased a Top Fuel turbo timer (similar to the Apex, but cheaper!). I want to use it to monitor the air/fuel ratio under boost and full throttle. (even though I know it wont be as accurate as a wide band!) I tried running only the constant 12v power, ground (to the ecu ground wire) and primary o2 signal ( I got it from the center ecu plug, the only white wire). But the timer doesnt even turn on! Does this mean I have to hook up the turbo timer function for it to work? or perhaps I got the wrong wires? the car is a 2004 model. Any help would be appreciated!

thanks!

Alex

 

bump

 

C'mon, where are the wiring Gurus?

 

You definately need to hook up at least the ACC wire... and not to be a jerk... but are you seriously running boosted without a wideband O2 sensor? There are sooooo many inexpensive options for that nowadays... You know the narrowband O2 sensor is just basically an on/off switch, and will not give you ANY sort of meaningful reading, right?

 

I just went throught like 30 pages of mine
If you feel up to it search my posts from the last page and work your way towards the front (recent) pages.
Its back there somewhere
It has pictures and everything

Marcus

 

Edit: LINK

 

Great, thanks!

P.S. I dont want to run a gauge because it makes it very obvious that Im running boost, and Im really scared of getting my car stolen! I know its not that great, but I think Ill feel at least a little better seeing a O2 voltage reading!

 

any more helpful info?

 

bump

 

The stock o2 sensor shows you nothing. It swings from full on to full off about twice a second..constantly.