So, I've got my three AEM gauges all installed location wise and I've got all the wires run except for the 12v constant. Several questions now:
1) I've found multiple conflicting sources stating what the in-line fuse should be for the gauges. Ive seen directions calling for a 5A and a 20A fuse. The gauge cluster underneath the dash has a 7.5 A fuse for our gauges. Think it would be ok to get a fuse spliter and hook up all three gauges that way?
2) I've never had a wideband before (the UEGO). I understand that typically you would put it in with an aftermarket testpipe (which I will be ordering soon in a week or two), however, is there a spot for the wideband on the stock dp/tp? Additionally, how do we get the car to utilize the readings from the wideband? Or is it just a gauge that we use exclusively for tunning and we let the narrowband do all the calculating and transmitting of data to the ecu? If the narrowband is the one the car relies on then will there be a spot for the narrowband and the wideband? Ive noticed on some sites that you have the option to order your testpipe with an O2 bung, I'm assuming that's for your wideband.
I may just be making this more complicated for myself than I need to.
1) I've found multiple conflicting sources stating what the in-line fuse should be for the gauges. Ive seen directions calling for a 5A and a 20A fuse. The gauge cluster underneath the dash has a 7.5 A fuse for our gauges. Think it would be ok to get a fuse spliter and hook up all three gauges that way?
2) I've never had a wideband before (the UEGO). I understand that typically you would put it in with an aftermarket testpipe (which I will be ordering soon in a week or two), however, is there a spot for the wideband on the stock dp/tp? Additionally, how do we get the car to utilize the readings from the wideband? Or is it just a gauge that we use exclusively for tunning and we let the narrowband do all the calculating and transmitting of data to the ecu? If the narrowband is the one the car relies on then will there be a spot for the narrowband and the wideband? Ive noticed on some sites that you have the option to order your testpipe with an O2 bung, I'm assuming that's for your wideband.
I may just be making this more complicated for myself than I need to.
Evolving Member
1) I tapped power for my guauges off of the cig lighter / acc fuse. Take a look at this link, it might help: https://www.evolutionm.net/forums/ev...lean-hell.html
I used a fuse "add a circuit" with a 10 amp fuse and ran it to a distribution block that my gauges are tapped off of. See this thread on the "other" board: http://www.evoxforums.com/forums/showthread.php?t=19107
2. There is nowhere to put a wideband in the stock exhaust setup. You can't get rid of the upstream O2 sensor and use that location as that sensor is the one that the engine uses to adjust fueling. You can't use the downstream O2 sensor location as it's in/after the cat (and your wideband always has to be placed ahead of the cat). You need to either have a downpipe or replacement cat/test pipe with an extra bung in it, or have a bung welded into the stock setup (I wouldn't go that route). Most aftermarket pieces will have this (some as standard, some as an option when you order). The data from the wideband doesn't get used by the factory ECU, it's a tuning tool and also allows you to detect problems in real time (i.e. when my fuel pump relay went out I was able to detect the lean condition on a wideband despite not feeling any issues while driving).
I used a fuse "add a circuit" with a 10 amp fuse and ran it to a distribution block that my gauges are tapped off of. See this thread on the "other" board: http://www.evoxforums.com/forums/showthread.php?t=19107
2. There is nowhere to put a wideband in the stock exhaust setup. You can't get rid of the upstream O2 sensor and use that location as that sensor is the one that the engine uses to adjust fueling. You can't use the downstream O2 sensor location as it's in/after the cat (and your wideband always has to be placed ahead of the cat). You need to either have a downpipe or replacement cat/test pipe with an extra bung in it, or have a bung welded into the stock setup (I wouldn't go that route). Most aftermarket pieces will have this (some as standard, some as an option when you order). The data from the wideband doesn't get used by the factory ECU, it's a tuning tool and also allows you to detect problems in real time (i.e. when my fuel pump relay went out I was able to detect the lean condition on a wideband despite not feeling any issues while driving).
Quote:
I used a fuse "add a circuit" with a 10 amp fuse and ran it to a distribution block that my gauges are tapped off of. See this thread on the "other" board: http://www.evoxforums.com/forums/showthread.php?t=19107
2. There is nowhere to put a wideband in the stock exhaust setup. You can't get rid of the upstream O2 sensor and use that location as that sensor is the one that the engine uses to adjust fueling. You can't use the downstream O2 sensor location as it's in/after the cat (and your wideband always has to be placed ahead of the cat). You need to either have a downpipe or replacement cat/test pipe with an extra bung in it, or have a bung welded into the stock setup (I wouldn't go that route). Most aftermarket pieces will have this (some as standard, some as an option when you order). The data from the wideband doesn't get used by the factory ECU, it's a tuning tool and also allows you to detect problems in real time (i.e. when my fuel pump relay went out I was able to detect the lean condition on a wideband despite not feeling any issues while driving).
The distribution block is a nifty idea, but I'm more curious if you can have just ONE fuse for all three of the gauges. I saw a youtube video of the UEGO only drawing around a max of 1.5A. Originally Posted by PSUfan1
1) I tapped power for my guauges off of the cig lighter / acc fuse. Take a look at this link, it might help: https://www.evolutionm.net/forums/ev...lean-hell.htmlI used a fuse "add a circuit" with a 10 amp fuse and ran it to a distribution block that my gauges are tapped off of. See this thread on the "other" board: http://www.evoxforums.com/forums/showthread.php?t=19107
2. There is nowhere to put a wideband in the stock exhaust setup. You can't get rid of the upstream O2 sensor and use that location as that sensor is the one that the engine uses to adjust fueling. You can't use the downstream O2 sensor location as it's in/after the cat (and your wideband always has to be placed ahead of the cat). You need to either have a downpipe or replacement cat/test pipe with an extra bung in it, or have a bung welded into the stock setup (I wouldn't go that route). Most aftermarket pieces will have this (some as standard, some as an option when you order). The data from the wideband doesn't get used by the factory ECU, it's a tuning tool and also allows you to detect problems in real time (i.e. when my fuel pump relay went out I was able to detect the lean condition on a wideband despite not feeling any issues while driving).
Thanks for the info on the wideband though. Cleared that right up for me.
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