94 Truck dilemma

[neilaura at accessworldnet.com]

At 11:36 PM 5/24/99 EDT, you wrote:
>Hi People,
>         I have spent an entire day trying to diagnose a problem, to no 
>avail.  When the engine starts it runs fine for approx 10 seconds,then
starts 
>running extremely rich.....I then rev it up to "clean" it out and block 
>learns and integrators are reasonable (123-125) then gradually returning to 
>idle all numbers stay within reason and again will idle fine now for about 
>3-4 seconds then whammo rich again, 

Start with the obvious Carl.
Pinch off the hose from the purge canister and see if you get an
improvement. I've had problems with them opening too early or leaking.


Neil