How come when I hit boost, my AEM wideband gauge goes off the scale?

It reads find when im off boost, but once boost comes on, maybe 10 psi, it goes off the scale?

why why why???

Rich

 

The AEM wideband only reads from 10.0 to 18.0, that is why. So your car is probably too rich.

 

correction, it only reads from 11.0 to 18.0, so yes you are running way rich

 

dohhh, i mistyped it.


Thanks,
Lu

 

hmmmm..but AL from dynoflash tuned my car and I doubt he would rich out the power band when boost is on...maybe its the alcohol?????

 

one way to find out, dyno the car with the dyno's wide band and compare

 

good call...will do...but does anyone think the alcohol has anything to do with the out of range reading?

 

You should actually go lean, when alcohol is activated.

Alcohol is not gasoline, which is what the sensors are calibrated for, gasoline.

 

it goes off because you're super rich...

 

alcohol is not gasoline...but it does make your fuel trims richer....so my guess is that he gave you a conservative tune ...in terms of fuel ..but made up with it in timing...al liikes to do that just incase the alcohol fails...and your motor goes boom because you're too lean...saves his *** and yours....that's his lawyer side kicking in ...heheh

...i got tuned by al ...and i'm still rich...gotta get tuned again...gas is killing me

 

Yeah and overly rich conditions can and will flood motors and bend rods..

 

... i've seen this...not good

 

UMMMMMMM....i dont think so.....like you said...when my alcohol kicks in it goes backwards into the green area of the gauge...not the red area..huh?

 

Nice, an amateur AFR gauge reader has joined the thread, welcome and have some tea.

Well, the way I can tell if I'm going lean is if the lightish-green LED on the left side of the gauge is in the 11:30 o'clock position. Thats about where it starts to turn red, about 12 o'clock, you know what I mean?

 

take it easy professional a hole....its the aem gauge and it has both number and color....what i was wondering was why it went off the scale...like the number part doesnt have a reading...I was saying that when alcohol started spraying the number went toward the green not toward the red....but other times it goes the other way from green to red....off chart tooo...i have no idea what the hell is going on