I have a few questions about my tune

[THE BLACK MAMBA]

The car seems to be running rich (i think) while driving around i notice that my 02 readings on the scanmaster is around .800 +... I was thinking it should be in the .700+ range, If thats not normal what should i check to bring it back down to normal?

 

[Chuck Leeper]

Post a SM readout...

 

[THE BLACK MAMBA]

This is just from warming it up....i can smell the gas fumes
02 796-812
af 07
L8 46
bat 13.8
int 128
bl 131
clt 168
ats 112
rpm 850
tps 44
iac 46

 

[HouTX87]

Looks normal to me. Iac is a little high.

 

[williamsGN]

Everything else looks good.. how old is the O2 sensor ?

 

[THE BLACK MAMBA]

I just order a Denso O2 sensor...Hoping that is the problem, while driving it the O2 was at 850-870 range

 

[GNRick]

Maybe your MAF is going bad.

 

[earlbrown]

when you're driving around your 02's should be jumping all over the place. (and your 'cc' counts should be jumping quite a big every 1.4 seconds)

Are you saying they're a steady .800's while crusing on a warm engine?

 

[dennisL]

Just because you see 800+ on ScanMaster while driving doesn't necessarily mean there's a problem. Like Earl said the O2 volts cycle up and down as the ecm does its rich/lean thing.
For example, during normal driving my O2 ranges from around 115 - 770. When I let off the gas and coast, the O2 goes to 799 - 850 and stays there for awhile. I don't think it matters but I'm using an NTK sensor.

 

[earlbrown]

^and if you go into DFCO it should read .000