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Old 09-16-2012, 05:41 PM
85impala 85impala is offline
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85 impala timing

hey guys, i have a 85 impala with a 305, quadrajet, and its all computer controlled with esc

well i noticed my timing is off because i hear slight pops through the exhaust and it goes away when i jump pins A and B to stop the computer advance.

i bought an aftermarket timing pointer, found TDC and marked it on the new pointer. On the timing tape it shows 0* when the A and B terminals are jumped. and shows 20* when running normally at idle.

my questions are

1) is it normal for the computer to be advancing that much at idle?

2) where do i go from here?

Im very new at this, just bought the car this year so please bear with me
Let me kno if you guys need more info

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