180ls1

iTrader: (4)

Well the car has been running a little rough and i want to do the idle relearn so i have searched and ran across this a few times but for the life of me i cant find the PCM BATT fuse!!! Am i overlooking it or is it something the 98 cars dont have? I can find the pcm IGN fuse just fine.

PCM Reset
Turn key on, don't start car
Pull PCM BATT and PCM IGN fuses in engine compartment
Wait 5-10 min
Turn ignition off
Replace fuses

If someone could run out to their can and look real quick i would really appreciate it

LS6427

iTrader: (2)

Its a tad more involved than that. Here:

Reset PCM:

-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.




Perform the following procedure to return the learned idle to the correct position:


Automatic Transmission:

1 Turn off the ignition

2 Restore the PCM battery feed

3 Turn Off the AC controls

4 Set the parking brake and block the drive wheels

5 Start the engine

6 Allow the engine coolant temperature to reach 176 degrees F

7 Shift the transmission selector into the drive range

8 Allow the engine to idle for 5 minutes

9 Turn on the AC controls (Omit for 2000-02 model)

10 Allow the engine to idle for 5 minutes (Omit for 2000-02 model)

11 Shift the transmission selector into Park

12 Allow the engine to idle for 5 minutes (Omit for 2000-02 model)

13 Turn off the AC controls (Omit for 2000-02 model)

14 Allow the engine to idle for 5 minutes

15 Turn off the engine for 15 seconds



Manual Transmission:

1 Turn Off the ignition

2 Restore the PCM battery feed

3 Turn Off the AC controls

4 Set the parking brake and block the drive wheels

5 Transmission in neutral

6 Start the engine

7 Allow the engine coolant temperature to reach 176 degrees F

8 Turn on the AC controls (Omit for 2000-02 model)

9 Allow the engine to idle for 5 minutes (Omit for 2000-02 model)

10 Turn off the AC controls (Omit for 2000-02 model)

11 Allow the engine to idle for 5 minutes

12 Turn off the engine for 15 seconds


.

TruBloodTransAm

iTrader: (24)

^good info