Delayed starting of the WBO2?

[Rickerbucks]

I still have the car on blocks right now but when I start the car, it seems to take about 5 - 8 mins of ideling to get the WB to work. Until then it stats stuck at 15.94.

During this warm, up the only way I can get the AFR to move is to REALLY bring up the VE numbers up - to about 100 - but once it warms up and the car is ideling a little better I can have the VE numbers in the 50's and get the 13.5 - 14 AFR that I want.

I do NOT have the "closed loop enabled" box ticked.

Is the AFR not suppose to start when I start the care? Perhaps I have the start up table to lean? How do I change that?

The car still needs my help with the throttle to keep it running for the first 2 mins or so.

 

[bobc455]

The Sensor has to come up to temperature before it will give accurate readings.

There are two settings in Calcom for this- one is a time setting (how long after the engine starts before it will enter closed-loop) and the other is a temperature setting (based on the CTS).

Before it warms up fully, however, you should still get kinda-sorta close readings from the O2.

Sounds like you don't have enough warm-up enrichment, but something else seems awry- you shouldn't need VE numbers in the 100 region...

-Bob Cunningham
bobc@gnttype.org

 

[Craig Smith]

It should really only take 30 seconds or so from stone cold to get a stable a/f reading. The VE numbers should be calibrated with the engine fully warmed up, and if it's too lean when it's cold, add warm-up enrichment.