Computer relearn?
Thread Starter
Pro
Joined: Jun 2005
Posts: 671
Likes: 0
From: garden city Long Island new york
Computer relearn?
My modded 01 c5 had some work done-took about a month-the shop disconnected the battery.I am in NY and need an inspection-they hook up to the computer diagnostic equipment.The shop told me I have to drive it a while to reset the computer-does anyone know how long it has to be driven for this?they said about 50miles but didnt seem sure,Thanks.
Drifting
Joined: Feb 2008
Posts: 1,765
Likes: 2
From: St. Clair Shores Mi
# Insert key into ignition and turn to the "On" position but, DO NOT START THE ENGINE.
# Pop open the engine fuse block box cover and remove the two 10amp fuses from position numbers 16 & 23.
# Your DIC will now display "check" messages for ABS, etc...
# Turn ignition to the "Off" position.
# Re-insert both 10amp fuses for positions 16 & 23.
# Start your engine
# Allow engine coolant temperature to reach a minimum of 176 degrees F and run at this minimum temperature for at least 5 minutes.
# Shut down engine
# Let rest for a minimum of 30 seconds.
# Restart engine - check for DIC error codes (there should be none).
# Drive car for a minimum of 30 miles at varying rpm settings and speeds. PCM will now re-learn and adjust for the new air flow and air temperature at the intake.
# Pop open the engine fuse block box cover and remove the two 10amp fuses from position numbers 16 & 23.
# Your DIC will now display "check" messages for ABS, etc...
# Turn ignition to the "Off" position.
# Re-insert both 10amp fuses for positions 16 & 23.
# Start your engine
# Allow engine coolant temperature to reach a minimum of 176 degrees F and run at this minimum temperature for at least 5 minutes.
# Shut down engine
# Let rest for a minimum of 30 seconds.
# Restart engine - check for DIC error codes (there should be none).
# Drive car for a minimum of 30 miles at varying rpm settings and speeds. PCM will now re-learn and adjust for the new air flow and air temperature at the intake.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
What I think they are talking about is not Learning the trims again---but rather going thru the "readiness tests" Anytime you lose power dis-connect battery) or download a tune--your "readiness moniters" RE-SETS themselves to "Not ready"and the diagnostics system has to run it's course to check all the systems--After it does ---the moniters will all read "ready"
This can't be done by just driving the car 50--75 or even 100 miles--It must go thru 2-3 cold start cycles and be driven in various conditions on each---You can check the readiness status with most scanners--When they all read "ready" then you can take it to the smog shop--
Most all smog shops will NOT pass an inspection until all the moniters read correctly----
This can't be done by just driving the car 50--75 or even 100 miles--It must go thru 2-3 cold start cycles and be driven in various conditions on each---You can check the readiness status with most scanners--When they all read "ready" then you can take it to the smog shop--
Most all smog shops will NOT pass an inspection until all the moniters read correctly----
