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Running rich but wide band says I'm normal

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dsmaddict123

10+ Year Contributor
37
0
Apr 2, 2012
hainesport, New Jersey
Like the title says I'm running rich but my aem wide band say I'm normal,
14.5-15.5 while cruising and accel not under boost
14.6 at idle
But the most I get is maybe 200 miles to a tank if I don't boost at all :confused:
I'm almost all stock besides 3 inch exhaust, intake, and front mount
I've read that we're supposed to get at least 300 to tank
I'm AWD also
 
First off, how do you know your running rich other than your 200 miles per tank (which is not a good way to base it on), have you checked your plugs.

Also, check your wideband. When they go "funky" they will typically read mid 14's to mid 15's.
 
First off, how do you know your running rich other than your 200 miles per tank (which is not a good way to base it on), have you checked your plugs.

Also, check your wideband. When they go "funky" they will typically read mid 14's to mid 15's.

Agreed, pull the sensor out of the exhaust and it should go full lean, or spray a cloth with brake cleaner and wrap it around the sensor, it should peg rich. If it doesn't shes pooched. Mine died and sat around 15.2. but would read correctly for the first 3-5 min of starting the car up and driving...

But if your Wideband is not inputting any signal to your ecu, it should have nothing to do with your poor gas mileage.

Ditch the AEM and grab something else.
Innovative has some nice stuff.
 
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