Idle messed up??

[Vito117]

Ok...here's what happened today:
I accidently let my battery go dead by having the ignition switch turned over....
So I jumped the battery.....no problem ,she started right up.
Now when Im idling at a stop sign or something....the car will almost die and then rev up to keep from stalling.
RPM's hit to about 500 and then I get the close to a stall sound.
I wonder whats going on here?
Something computer related?

93 SHO
125k
ATX

 

[sdpatt]

Reset the idle programming per the following.

1) Disconnect the negative battery terminal.
1a) Optionally, disconnect the keep alive memory connector in the small wire also landed to the negative battery terminal. You can then wait the 15 minutes, reconnect the plug, and go to step 6).
2) Turn on the headlight switch.
3) Wait at least 10 minutes.
4) Turn off headlight switch.
5) Reconnect the negative battery terminal.
6) Start engine normally (never press on the gas pedal).
7) Allow idle speed to settle for about 30 seconds.
8) Within 70 seconds of starting the engine, apply all accessory loads the engine will see at idle. Do these concurrently.
8a) Climate control to MAX A/C.
8b) Headlight switch ON.
8c) Turn steering wheel 1/2 turn side to side.
8d) Press brake pedal.
8e) ATX SHOs only: shifter to DRIVE.
9) Do not turn off engine for at least 5 minutes.
10) It is preferable that the car be driven immediately after setting the idle programming.
11) While driving, allow the coolant temperature to rise to the normal range.
12) Run the car through its entire performance range.

 

[Vito117]

Thanks for the tip.....thought it was some sort of joke...hehehehe
Anyway ,I tried all of that.
I still get stalls.
RPMs dip below 500 and then dead....not all the time just once in a while...like at stop signs.
Do I try the procedure again?
Man, it never did this before my battery went dead...UGGGG

thanks again

 

[sdpatt]

Try the procedure again, but disconnect the battery terminal rather than the memory connection. I seem to have better results with that method.

Scott

 

[Vito117]

UGGGGGG
I tried this like 4 times...and still no results.
The car still stalls on me.

It seems the only way to keep it from not stalling is to keep the AC on max.
Try again???

 

[sdpatt]

Either you are not setting the idle program correctly or your idle air control valve is not responding properly to the EEC's comands.

Scott