I have an AEM wideband. Installed it just right after narrow band in pipe, hooked to my pro interface and it reads 16-16.5 afr at idle. This did not seam right to me so i unhooked it and check the voltage with a DMM which reads 1.4-1.9 volts while idleing. comes to 11-11.5 afr . I did the math so i could see what i would need as a base line per hp help. This is what the preset is on one of the AEM presets. I have to curve the numbers alot to get them to read what teh sensor reads on the DMM. Is this normal? By the math equation it should be 7.92 and i have it at 4.92 to read what the AEM chart says it should read by the DMM?

Thanks,

Quarter