Running Rich is Fun

[Litton]

After all the warnings by members of this forum regarding the air temp sensor.....I accidently left the sensor unplugged yesterday. I was in a hurry to get to the drugstore and slapped the air cleaner back on, closed hood and fired her up. Thought is was a odd that it seemed to be idling a bit rough and sending out a bit of black smoke, but what the hell, I was only going to the store.

Big surprise, that 4.5 never had so much power....really a kick from the stop sign. It wasn't 'til I got home and it was still a bit rough that I looked under the hood and saw that connector loose. Plugged it back in a everything went back to normal.

I am actually thinking about installing a switch on the leads.. Maybe wiring it to the kick down switch. Also thinking about putting a spring extension on the kickdown so it engages a bit sooner then "petal to the metal"

Someone had said that running rich would "burn the tires off", well that wasn't far from the truth.

[Tomguy]

Well, that's because you're so lean to begin with! When you run as rich as mine does - leaving that wire off means a LOT of smoke and hesitation on the highway!
Although since I leaned it out, last time I forgot it off, I did blow away the Mustang behind me... then again, he might have choked on my smoke!

[psfred]

Get her up and flying, then richen the mixture a bit. Don't go overboard, or you milage will drop to the 10-12 mpg level.

You already have an "accelerator pump" feature on the EFI, and full throttle enrichment (floor it sometime at night in traffic -- you will see a puff of smoke as the EFI dumps the fuel to it). This is the source of that wondeful throttle repsonse the D-Jet has. Also the source of the fuel greed and excessive pollution -- if you run very rich, they STINK terribly!

Peter