The 96 Impala LT1 uses an optispark ignition system in which timing is controlled by the PCM (Computer). In order to change the timing you would need to use a computer, cable, and a tuning program such as PCM4Less or Tunercat.
The Optispark mounted on the front of the engine is non adjustable for timing controls. The timing is controlled by the PCM sending signals to the ignition control module located adjacent to the coil on the passenger head.
I believe that the 96 has an electronically controlled ignition and cannot be adjusted. If there is a timing issue then timing belt replacement or adjustment is necessary.
there is no ignition timing adjustment it is computer controlled. gm Jim
helps to have the year but 96 and up are computer controlled and there is no timing adjusment only cam adjustment
is a 96 impala faster than a 93 corvette
Rotate the distributor. (Don't try this unless you know what you are doing.)
No, the 94-96 Impala did NOT come from the factory with a sunroof option. However, there are many Impala's out there that had sunroofs installed by the dealership that they came from when they were new. So, it is possible to find a 94-96 Impala SS with a sunroof.
There are no points on a 96.
94-96 impala's dont have a stock airbag suspencion!!
The timing on the 96 SS cannot be adjusted by the owner. Timing is a function of the PCM and inputs from the optispark and crank position sensor. The timing is continually monitored and adjusted based on driving conditions and whether or not the "Knock sensors" are reading a knock condition at which time the PCM will retard the timing to prevent engine damage. This can be altered somewhat by changing the sensitivity od the sensors by modifing their circuits ot by substituting a LS4 knock sensor.
To adjust the base timing on a 1996 Ford Bronco 5.8L, first ensure the engine is at operating temperature and then disconnect the timing connector, usually located near the distributor. Use a timing light to check the current timing by pointing it at the timing marks on the harmonic balancer while the engine is running. Adjust the timing by loosening the distributor hold-down bolt and rotating the distributor until the desired timing is achieved, then retighten the bolt. Finally, reconnect the timing connector and verify the timing is set correctly.
1996 impala ss
im guessing your problem is that the ignition timing is not adjustable. you'll need to align your base timing.(timing belt/chain)