Currently working on tuning a 97 Tahoe with a HT383E and a 411. I finally bought a wideband (Innovate 3918) to put in the truck, installed it in place of the DS o2 for the time being until I can get a bung welded in, tapped into the fuse box by the door for WB power, and grounded to the metal dash support. I am having a problem with the wideband voltage oscillating pretty drastically when reading into HPTs. If WB gauge is at 14.7 it will read ~13-17 on the analog out, but seems to average out normally to make proper adjustments. The gauge itself is consistent. I found one article mentioning that the input voltage is the issue due to the analog out being relying on a constant input on a constant input but I don't have any issue like this in my other vehicle with a Glowshift WB. I'm looking for some solutions for fix this or what may be causing this issue. Not sure if it's me, or something wrong with the WB I bought, or if this is normal (which I don't think it is).
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Originally Posted by dhoagland
