06murder

It is tuned, speed density, cam 224/230 114.. I tore it down a year so ago was going turbo, said **** it, took kit off and put headers back on, but last night , foot braking in drive way would down to 11-13 af the stay 12s for minute or so, something is telling it’s the filter only, cause I don’t have a pipe on for intake right now... just threw it back together lol..

06murder

It idles at 14-15.. foot braking bout 14-15 also when let out it drops 11-13 for a minute then levels out

03sierraslt

iTrader: (22)

it drops for a min or a couple seconds? Get a intake tube back on.

06murder

Bout 30 seconds.. plan on it get tube for it

FFDP

iTrader: (2)

A cat test will also cause the air fuel ratio to drop and it can also cause it to rise to 15-16 for short periods of time.

HP Tuners can't disable the test but plugging the rear o2 sensors back in fixed that issue on my 2006 Sierra.

06murder

Maybe tune need and update???

RedXray

Get your CAI/breather system finalized then have the tune addressed. If the old CAI is an off the shelf aftermarket system I'd simply replace it with the identical system to get back to stoich. If you like changing different parts (cai, gears,tire size, exhaust etc.) I'd recommend buying HP Tuners. It sucks having to schedule a tune appt. anytime you change parts. It wouldn't take many driving logs (or dyno) to get the VE tables tweaked in.

06murder

My cousin tuned it, he 15 minutes down the road

RedXray

Dam son... put on some rubber gloves and a mask and go see cuz lol

06murder

I’m not worry bout the corona, if your ment to have it, you will get no more how you are.. my boss lady has it!