General Category > Quadrajet Carb Talk and Tips

fast idle working backwards?? advice???

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Mr.Pontiac:
When choke is closed and first starting up the idle is very slow and after choke(divorced style) warms up and choke plate opens the car idles very fast??? Any ideas???

Cliff Ruggles:
Adjust the choke pull-off so it runs better cold, probably too rich or too lean initial start-up....Cliff

Mr.Pontiac:
What seems to be happening is at idle car idles fine at 850 rpm,s minute car is warmed up and move throttle at all when choke is open it jumps to 1500 rpm,s and stays there. Still in choke pull-off area???

Cliff Ruggles:
Is the choke raising the fast idle cam when this happens?..

Mr.Pontiac:
yes it is, forgive me i am corresponding with owner day by day, Thank You.

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