1st timer....1999 Civic HX

[California98Civic]

Originally Posted by PaleMelanesian

Why don't you think the Scangauge works well on our cars? I use one and it seems to work in my civic. As long as it's not the lean-burn HX it works well.

I guess I was mistaken. When I was looking into a gauge a few months ago, I went first to the ScanGauge site, and I thought it said my 98 DX was not compatible, so I bought the UG. That said, I have not gotten accurate readings on MPG from the UG yet--if accurate means correspondence to my odo/miles/pump calculations. Right now I am not yet sure if it is a calibration problem or due to other mechanical and pump variation factors that have lately bugged me a little. A question: MPGuino can be run at the same time as a UG, I think, right? The guino does not plug into the OBD port, no? Would it be advisable to run both, or should I just keep trying to calibrate the UG.

[Drew]

Yes mine is an HX model with the lean burn engine. Is the MPGuino hard to wire up? I don't want to screw anything up. I saw a web site but it looked like you had to build the board and it didn't have a box it mounted in. Is there something I'm missing?

[PaleMelanesian]

I don't know how the UG calibration process works. They way I did my Scangauge was to keep a running tally of Scangauge-reported gallons and actual pump gallons. After a few tanks you get a really good number. Now I just set it to that and know it's right. (+10% fuel = -10% mpg for my car and driving style)

The mpguino does not use the OBD port so it can run beside either the SG or UG.

[Drew]

It sounds like the MPGuino is the the best way to monitor my lean burn. Since it is the only true way to track the MPG. I've seen the instructions on installing a phone jack as a terminal port for the MPGuino. Is it best to splice these connections at the ecu or at the end points of the cirucits? All advice is welcome. I dont want to screw up anything! I've been looking for some easy to follow steps. So if there is a site or link you know of please pass it along. Any success stories would also be good. I'm going to try to find my electrical wiring diagram for the 1999 civic HX engine d16y5.