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-   -   Glowshift wideband install help (https://www.miataturbo.net/megasquirt-18/glowshift-wideband-install-help-92951/)

NiceMiataBro 04-23-2017 06:23 PM

Glowshift wideband install help
 
Hey everybody, just recently got my car turbod and am running a glowshift wideband. I have two questions

1. What do I select in tunerstudio under calibrate afr table? Glowshift isn't an option so right now I selected custom and it seems to be about 1 afr lower than what the gauge reads

2. The gauge seems to be trying to calibrate every single time the power is turned off and then on (ex. Key is switched to on and the gauge will calibrate and usually just read 20 then when I start the car it starts and then tries to calibrate itself again.) Eventually it settles at 10

Could this potentially be happening because the 12v constant wire isnt on a constant 12v source? Right now it is connected to the blue and red wire on the back of the radio which I heard (correct me if I'm wrong please) is a constant source and seems to be working fine for my boost gauge.

maybe I should buy a multimeter

any help is appreciated been at this all day thanks so much in advance

Art 04-23-2017 06:52 PM

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NiceMiataBro 04-23-2017 07:37 PM


Originally Posted by Art (Post 1408228)
Not sure where to begin. They seem to use the Bosch 4.9 LSU sensor so there's that. You need a multimeter. "Grounded" to a constant power source doesn't make sense. Many people are happy to help but it almost sounds like you're just guessing and this might just be the tip of the iceberg as far as getting your car tuned.

sorry did not mean grounded I meant connected, and I'm not guessing I'm almost 100% sure it's wired right I just don't know why it calibrates itself every time the power is turned on and off

Onyxyth 04-23-2017 08:07 PM

You should DEFINITELY have a multimeter before starting an install like that.

Which gauge exactly do you have? From my 30 seconds of googling I found:


Wire Color Code Red: 12v Constant Source (+) (un-switched)
Black: Vehicle Ground ( - )
White: 12v Ignition Source (+) (switched)
range: 12v Switched Headlamp Source (+) (optional)

Data Logging Output: Offers two analog outputs for monitoring and capturing Air / Fuel Ratio using a third party data log device Wire Color Function Connection Signal Voltage Green Provides the positive (+) analog
NARROWBAND voltage output signals. Data Logger (+) 0– 1 volts Brown Provides the positive (+) analog
WIDEBAND voltage output signals. Data Logger (+) 0 – 5 volts
Black Provides the negative (-) ground reference for both analog NARROWBAND & WIDEBAND voltage output signals.

Is this how you have it wired? It sounds like you might have wired your 12v+ constant (white) to something that switches off.

NiceMiataBro 04-23-2017 08:23 PM


Originally Posted by Onyxyth (Post 1408246)
You should DEFINITELY have a multimeter before starting an install like that.

Which gauge exactly do you have? From my 30 seconds of googling I found:




Is this how you have it wired? It sounds like you might have wired your 12v+ constant (white) to something that switches off.

yes this is how I have it wired so I'm thinking you're right I'm gonna try wiring it to the fuse box tomorrow and see if anything changes

Onyxyth 04-23-2017 08:47 PM

Please get a multimeter and a wiring diagram. Don't just wire it something random in the fusebox.

huesmann 04-24-2017 03:08 PM

Unless you have something that says otherwise, you can probably set your wideband input in TS to be linear 0-5V. Should be something like 0V=9 AFR, 5V=19 AFR.

NiceMiataBro 04-24-2017 03:24 PM


Originally Posted by huesmann (Post 1408493)
Unless you have something that says otherwise, you can probably set your wideband input in TS to be linear 0-5V. Should be something like 0V=9 AFR, 5V=19 AFR.

thanks I'll try these settings

shuiend 04-24-2017 03:26 PM

Well you should really look at your documentation for the wideband and give you the values it tells you to use. Also not buying a shitty wideband controller is a good starting point.

concealer404 04-24-2017 03:27 PM


Originally Posted by huesmann (Post 1408493)
Unless you have something that says otherwise, you can probably set your wideband input in TS to be linear 0-5V. Should be something like 0V=9 AFR, 5V=19 AFR.

Sounds like something you shouldn't do. This isn't a sensor that causes good things to happen if you ASSume incorrectly.

NiceMiataBro 04-24-2017 04:44 PM

Fixed my own problem thanks guys

Onyxyth 04-24-2017 04:57 PM

What was the fix? Just in case someone stumbles across this thread later.

sixshooter 04-24-2017 06:12 PM

No no no no. Don't tell him.

NiceMiataBro 04-24-2017 07:41 PM

Wiring it into the fuse box fixed it

ridethecliche 04-24-2017 07:45 PM

Did you wire it to something that was going to stay on all the time?

NiceMiataBro 04-24-2017 07:58 PM


Originally Posted by ridethecliche (Post 1408621)
Did you wire it to something that was going to stay on all the time?

yeah there's a red bolt if you look into the fuse box put a ring terminal under it and get an in line fuse for it and install a 3 amp fuse then connect the red wire to that


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