peddyeye

my air fuel ratio gauge reads rich all the time exept wen i'm off the X

GhostAccord

What gauge are you using and Are you using a stock narrow band O2 Sensor or an aftermarket Wide band O2?

If your using an AFR gauge with a stock narrow band O2 sensor you will only ever get narrow band AFRs. It will either show rich or lean on the gauge due to the O2 sensors 0.5 to 1v signal output (aka narrow band). A wide band O2 sensor signal usually ranges from 0.5v - 4.5, 5.0v (AKA wide band) This is how you get a wider verity of AFRs showing on the gauge.

peddyeye

ok thanks.. i still have the stock o2 sensor

peddyeye

hey me again. the gauge that i'm usin jus has 3 wires. power, ground and a airflow signal that goes to the ecu harness. does the o2 sensoe affect it still?

TheMuffinMan

iTrader: (1)

Yes, as Ghost said the voltages would still not registering properly on the gauge with the narrow band.

peddyeye

ok

TheMuffinMan

iTrader: (1)

If you don't understand what he's saying is that most likely your gauge reads from the .5 to 4.5V so if it gets a signal other than that or a lower signal from the stock O2 sensor it will not report it properly.

Same thing with computer chips and all that, they have acceptable ranges and if you don't get in there you get odd results

peddyeye

oh ok thanks much

neardon

I don't think you understand. His gauge works completely fine but its useless. The gauge reads the stock voltages but the stock voltage range is so narrow it can only read lean, stoich, or rich nothing inbetween. A wide band uses a whole different setup, his guage wouldn't even work with one. His guage is meant for ricers that just want to see a light show, hell even I bought one when I was 16.

TheMuffinMan

iTrader: (1)

I guess he'll need to post up the gauge he has.

Found this:

https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/air-fuel-gauge-hook-up-2303225/

GhostAccord

WoW is all I have to say about what 97ekb18b was promoting in that thread. Runing an autometer narrowband AFR gauge on an untuned car is not cool at all. Specialy runing 24lbs of boost. F'n retard.

That thread is very missleading for a noob. It does have some good information but it's mixed in with alot of BS.

TheMuffinMan

iTrader: (1)

Haha I just read bits and pieces, namely the bit about connection the gauge. Did not see that part you were talking about

casper.hughes

i looking to get a a/f gauge and i was just wonderin how to hook it up and will it affect the computer thanks

GhostAccord

If you do not have a wide band O2 sensor and wideband gauge don't waste your time or money. The narrow band Autometer gauges are really just for show, in conjunction with a narrow band O2 they don't have a wide enough range to be of any practical use.

If you want a real AFR gauge you are going to have to spend some money. Do some reasearch into these brands.
Innovate LC-1 - XD-16 combo or LM-2 Kit
PLX - DM-200 + SM-AFR Combo
AEM - Single Channel Wideband UEGO Controller Module
And there are a couple cheaper DIY-WB kits out there as well.
If you are comfortable with reading electronics schematics & soldering.

After all this if you still want to throw a NB gauge in there, It will come with installation instructions and it will not affect your computer. Unless you wire it wrong.