AlloySixxer

Just when I thought I was finally good to go with the supercharger, another problem arises...

So, I finally got the wideband A/F gauge installed and I'm reading 21.9 while at idle/cruising and it only goes down to 17ish when I step on it. The guy at the shop (a good mustang speed shop) re-calibrated it 3 times and still got the same numbers. So basically, it's reading that I'm lean as s**t. I talked to Dave who's trying to get into contact with Doug and it could be two things.

1. Doug's rather rich tune is somehow messed up and super lean.

2. The A/F gauge sensor came toasted out of the box and is reading wrong.

The car seems to run fine to me and the bung weld is in a good place, so I really don't know what else to think.

2005Redfire6

.....get it dyno tuned.

EVILHORSE

what kind of wideband do you have?

AlloySixxer

Innovate Motorsports

howarmat

only reading you should care about is WOT. the other readings (idle) arent accurate

EVILHORSE

innovate is one of the best widebands out ,this is the first time I heard of anyone having issues with thier units .I would definetly check the bung location and angle again ,also check the weld on the bung.

EVILHORSE

very true +1

JimC

Where do you have the sensor bung located? It needs to be between the cats and the engine to get an accurate reading.

AlloySixxer

Hmm, I believe it's behind the driver side cat, so it's not between the cat and the engine. The shop said this was a good place. Dang.

2005Redfire6

Did you get this issue figured out?