Welcome Visitor! Please take a few seconds and - Joined
- Mar 23, 2025
- Messages
- 32
- Points
- 101
- City
- Denver
- Vehicle Year
- 1985
- Engine
- 2.8 V6
- Transmission
- Automatic
Hello,
Failing emissions on carbon monoxide, investigating ignition timing. I set my base timing, but the curve seems strange. Is this typical? What should I be aiming for? P.O. had put a very new looking distributor in, bright blue. Advance is controlled by computer (TFI).
BASE (SPOUT disconnected): 10* total @ 800RPM
AT IDLE (SPOUT connected): 23.5* total @ 900RPM
ALL-IN (SPOUT connected): 41* total @ 1700RPM
Seems like it goes all-in fairly early, and the large jump in advance from base timing to idle is surprising as well.
Failing emissions on carbon monoxide, investigating ignition timing. I set my base timing, but the curve seems strange. Is this typical? What should I be aiming for? P.O. had put a very new looking distributor in, bright blue. Advance is controlled by computer (TFI).
BASE (SPOUT disconnected): 10* total @ 800RPM
AT IDLE (SPOUT connected): 23.5* total @ 900RPM
ALL-IN (SPOUT connected): 41* total @ 1700RPM
Seems like it goes all-in fairly early, and the large jump in advance from base timing to idle is surprising as well.
