Engine runs very rich

[TurboBuRick]

Did it today in close loop: at idle BL is 126, then went after start in different driving condition to 124/123/122/125 and 128 on wot. Made test on third with wot but only saw O2 at 693. May be have to do last test again.

The scanmaster will record 02 millivolts after a wot pull. Hit the recall button to see the number.

 

[buicktom61]

The scanmaster will record 02 millivolts after a wot pull. Hit the recall button to see the number.

693

 

[phil_jordan]

That's really lean....

 

[phil_jordan]

693

Ideally on pump gas alone between 780 and 800 is ideal. I'm prefer to tune on the safe side though, which is why I like 800...

 

[buicktom61]

Ideally on pump gas alone between 780 and 800 is ideal. I'm prefer to tune on the safe side though, which is why I like 800...

Thanks!