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Fuel curve tuning!
OK I fixed my Evap Purge Soilnoid about 2 weeks ago and now the car runs a bit rich, but also still leans out.
Story: On a cold engine I'll start driving and then at crusing speed, around 2000 RPM's the WB A/F will show 17.0, all red, and the car will be driving like it has 3,000 lbs in the trunk, quick slap of the gas pedal and it will unlean and go rich. It used to go back to say 13's then try leaning out again and get into the high 16's before going back to a normal A/F range, but now it does that but it also will stay rich and be running in the 11's even at idle.
Once the car is warm, it will still from time to time do the 17 A/F thing, but go back with a gas pedal slap.
Any idea of what to look at in HP tuners?
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2000 Olds Alero 3400 SFI 14.53 @ 94.93
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