Is there a way to tell if you are running lean?

[Devilboy28]

See mods below. I ask this because sometimes when I'm in 2nd gear driving slow (automatic) and punch it, it taks off like a bat out of hell, but it seems to cut out after reaching high RPMs right before the shift. It just goes quiet for a SPLIT second then shifts like normal. Thoughts?

[kahouna23]

If you want to check to see if you're running lean, pull a spark plug out and see if it's white. That's a good indication you're running lean. Other than that, I haven't a clue how to diagnose automatics. Could be a speed sensor on the transmission or something else....I dunno.

[TwoTealTerrors]

yeah what kahouna said about the spark plugs also you would smell a roten egg smell if it was running lean enough.

Later,
Mike

[RamAir95TA]

If it's hesitating before shifting at WOT, might be your transmission telling you that it's about to take a dump.

[HPbyChevy]

:( Rev limiter..... [img]graemlins/crybaby.gif[/img]

[Devilboy28]

I smell egg a mofo, but I figure it's because I've cut everything off behind my cat and welded in a turndown. REV LIMITER!!! BINGO! I never even thought of that! Thanks.

[calvo]

Get an air/fuel ratio gauge. cheep one from auto zone is about $30 or autometer I would say $65+