any reason u want it to output hz?

 

Anyone willing to situate the wiring for me LOL. are we soldering? tapping into pin outs? I haven't even pulled my ECU from the car, so no clue on what I'd be doing.

 

there will be a update coming this week or next. i will attempt to make a video on how to do the wiring and programming for everyone

 

Awesome. If i can actually see what to look for (how-to is a bonus), I will be doing this. Seems silly not to.

 

I did heat shrink and tap in pins for testing, planning to solder for the final product that goes in the car but I dont see why it wouldnt work, Ill post some pics of my very ROUGH work.

 

I am fine with mechanical stuff. I have to admit that is a bit intimidating.. .especially since I'm afraid I'll fry something

 

cool, thanks for your sharing, very helpful to me.

 

Have you wired up a gauge before

 

Not after pulling it apart and connecting wires to the circuit boards LOL

 

well, i guess thats one way to look at it, I dont have much experience with circuit boards or anything either, really none. and it was easy! so what if you fry something its like 12 bucks haha

 

I've had mine up and running for awhile, only issue is out of the car the readings are fine, but in the car my temp values are nonsensical and jump around while the ethanol % is pretty stable but will sometimes jump to random numbers.

It's odd because the function all seems to be fine, even verified against the test tube method, but something in the car is causing it to go haywire. Even switched to a shielded wire for signal from the sensor

 

I am running an aem infinity ecu and will be utilizing a Hz input to the ecu

 

DId a test in some E85 and heres what im getting on the serial input, not sure whats going wrong

0
65452
-1.50
0

 

if u have the unit plugged into your laptop, you will have to ground the arduino to the car

 

I had it hooked up to my laptop but I grounded it on the negative cable on the power booster I was using to power the sensor. Touched it to the usb metal casing like previously said.

Why is this by the way, whats different then if I have it plugged into my USB on my head unit?

Any other ideas why its not working?