ThunderZ28

iTrader: (7)

what needs to be adjusted..
my ltrms are at +25,
and my O2's are at 350 at idle..
what gives???
is it that big of a diffrence going to LT's????

chrisj6

no i think that has to do with the position of your sensors, how far downstream from the collectors are your sensors placed? You might have to tweak your trims a bit, but the only thing you should really have to end up doing is adding a bit of fuel on the midrange and a bit more on the topend.

Chris

ThunderZ28

iTrader: (7)

they are about 4 inches from the collectors give or take..

ThunderZ28

iTrader: (7)

???????????

rgvsierra

iTrader: (7)

plus 25 at idle usually shows a sign of a leak.. unless you adjusted something in your tune wrong.

oh, wait, is this 25 at idle or driving?

1slowsilverado

iTrader: (1)

I had the same problem, Not with the trims but with the 02 sensors not switching. Are your headers uncoated? I had to go with a different 02 sensor and swap the pig tails to be a direct fit.

ThunderZ28

iTrader: (7)

+25 at idle
and the O2's are at 350 at idle
and they are armour coated..
the O2's screwed right and I tightned them down..
headers came with a block off plate for the EGR, that I put on there..
but the freaking thing is so loud I doubt I could even hear a leak if there was one..
sounds like I am in the garage at a nascar race..

1slowsilverado

iTrader: (1)

Put alittle tranny fluid in the main vacumm line. It will smoke like crazy at the leak and **** your neighbors off. Any codes yet, or havent put many miles on it since install?

ThunderZ28

iTrader: (7)

well I havnt even been able to drive..
it's just the headers.. tomorrow I am going to get the rest of the exhaust put on...

1slowsilverado

iTrader: (1)

Well after you get it all put back together and drivable. Youll probaly be fine, If your running open headers? It not going to read right. Thats a major leak right at the 02 sensor...