Thread: Maf Voltage in Negatives?

Alright first things first, I got a custom reground kit... you can find an image of my grounds below...

Well I took a digital voltage meter to see what my maf voltage was going to be on the new grounds etc.

With the digital voltage meter, i took the black wire and connected it to the ground, and took the red (positive) wire and connected it to the ground were my maf is located.

Here is a pic, MAF wire has a blue plastic on it.


Well my readings would be something like -0.004 etc. Now if you look at the ground diagram you will see that the battery is connected to the intake manifold after being connected to the block. Dunno if this makes much of a difference...

Is something wrong that its in the negatives?

New Grounding Paths:

thats just the meter. I've seen em reading .001 or so even without the leads touching anything. I'd only be concerned if the ohms were like .1 or above.

Oh whew

It's a fairly expensive one from what I understand lol... I just wanted to make sure my crappy MPG wasn't because of my maf hehe

oh yeah, if you are trying to get voltage drop readings, you can only get accurate readings if your meter is connected in series with the circuit, not in paralel, so if you were checking V and still had everything connected and were just putting your meter on two ground spots, you won't get an accurate reading.

Ah, makes sense I guess hehe.

Now onto the spark plug wires and distributor cap... I think I should get some new OEM ones... I saw too much dust in the cap's 4 slot... cleaned it out so hopefully now it will have a better connection