hi I was wondering if anyone could assist me in hooking up an Autometer Wideband gauge. I was wondering about the wot switch it apprears that it needs a switch wired before the wot micro switch, do i need this to active the wot switch when the peak hold function is desired? And is the thing next to it on the left side a momentary switch I do not plan hat I would hold to get peak readings while not at wot. There are no plans to do much time at the strip so it seems that I would not really need these features. Another question is about the secondary engine ground, should I weld a nut on the exhaust for the ground wire near the bung since there is over 20' of piping from the engine to the exit on the turbo and the exhaust housing is coated so it's not very conductive. Any input would be appreciated, thanks.

 

Anyone? There must be some one that has installed one of these

 

Ok I just looked at autometer's website and they have diffrent instructions than what came with the gauge, it shows just a regular wot switch instead of 3 switches. I assume that one is more correct, since I hooked up the power to the battery see if it was working and nothing appeared and on the website instructions it says 13.5volts is needed for it to power up. I really didn't think hooking up a gauge would be so complicated, sofar I have been more confused on this than my whole turbo setup.

 

ttt

It's not doing any good sitting on my desk taunting me, but I am pretty suprised how they packed so much into a standard gauge housing without the need of a seperate controller box like many others.

 

Looks like you only need to hook the black to ground and red to 12v+ and plug in the sensor (13.5V is the typical voltage you would see when the engine is running but the sensor should still work if you only read 12 volts). The blue, blue/black and brown wires all appear to be optional.

Are you running a rear-mount turbo? Ideally o2 sensors need a certain amount of heat to operate properly and burn off any hydrocarbons they might collect over their lifetime. I would think that mounting it close to the tailpipe in order to get it behind the turbo might shorten the life of the sensor. The closer to the engine the sensor is, the more accurate the reading will be and the longer it will last.

Some people might say it's not a good idea to put an O2 before the turbo, but Buick actually did this on the Grand National. I never had any problems with mine mounted like this.