[Terry335]

Originally Posted by nj1266

No it is NOT good enough when you have a catted car like yours. That is not a proper way to tune cars. The wideband sensor should be placed in the downpipe between 18 and 36 inches from the turbo. Having it in the tailpipe will lead to contamination of the exhaust stream and will give you false results.

Everyone that I know who runs a wideband place it in the dp. You want the sensor to have the least likelihood of getting expose to outside oxygen.

I have LM-1 sensor in the dp and I had a very small leak in the falange between the dp and the high flow cat. Even though the leak was BEHIND the sensor, the sensor picked up the leak @ WOT and made my AFR between 0.5-1 full point off.

Go to a muffler shop and have a bung welded in the dp. It should not cost you more than $40.

I've always tuned via wideband in the tailpipe on a dyno and been happy with the results. I guess it's a matter of opinion.

[A418t81]

Originally Posted by nj1266

No it is NOT good enough when you have a catted car like yours. That is not a proper way to tune cars. The wideband sensor should be placed in the downpipe between 18 and 36 inches from the turbo. Having it in the tailpipe will lead to contamination of the exhaust stream and will give you false results.

Everyone that I know who runs a wideband place it in the dp. You want the sensor to have the least likelihood of getting expose to outside oxygen.

I have LM-1 sensor in the dp and I had a very small leak in the falange between the dp and the high flow cat. Even though the leak was BEHIND the sensor, the sensor picked up the leak @ WOT and made my AFR between 0.5-1 full point off.

Go to a muffler shop and have a bung welded in the dp. It should not cost you more than $40.

I had a nasty post WB leak when one of the cheap gaskets B&B gave me with my exhaust crapped out and there was no change in my readings, before or after I fixed it. YMMV.

[lawdude]

Originally Posted by Mr Troll

LOL If you think I'm StylePoints then I guess you also think Procede = Haltech. No, wait a minute, I forgot, you are in THAT camp.

Better to be thought a fool than to open your mouth and remove all doubt.