The top speed limit is set in the program running in the ECM (Engine Control Module). Someone once told me for the Grand Am, the limit was set by the speed rating of the OEM tires.
The top speed of the 1997-2003 Grand Prix GTP is 126mph (limited). If the speed limiter is disabled, the top speed will be increased to over 140mph.
125 or so EDIT: My stock GTP would top out at 125, I have since then chipped it and removed the limiter and it topped at 138. Now I have mine slightly modded and got clocked by highway patrol at 149 and I still had some to go.
The only way to "shut off" the spees limiter is to get it tuned by someone that has a tuner. Go to www.OQCGP.net there is someone there that can help you.
128 MPH limited157 THIRD GEAR LIMITER REMOVED
in the motor
It is not recommended by the manufacturer to remove the speed limiter on a Fiat Doblo. The speed limiter is installed for the safety of the vehicle operator.
at what speed does over drive kick in
I have an 03 grand am gt, the speed sensors are built into the hub assembly on each wheel.
Where is the vehicle speed sensor pick up located in a 1994 Pontiac Trans Port?
trasmission
a grand am 2000 runs 205kmph on highway
155 mph before the Speed Limiter kicks in. If you disconnect the Speed Limiter, the top speed is approximately 167 mph.