I suspect that the linkage between the gas pedal and the throttle is worn. Check the cable that connects the two.
get a better car
There is not speedometer cable on a 1996 Honda Civic. There is a throttle cable. Top replace this unhook it from the throttle body and gas pedal. Hook on the new cable to snake it through the firewall. Properly hook the throttle cable to the gas pedal and throttle body.
Go to www.fueldoorfix.com there is a tutorial on how to open the stuck fuel door very easy to follow!
The 2003 Honda Civic is a gas-powered vehicle.
The 2014 Honda Civic is a gas-powered vehicle.
The 2004 Honda Civic is a gas-powered vehicle.
The 2002 Honda Civic is a gas-powered vehicle.
The 2013 Honda Civic is a gas-powered vehicle.
The 2001 Honda Civic is a gas-powered vehicle.
The 2011 Honda Civic is a gas-powered vehicle.
The 2010 Honda Civic is a gas-powered vehicle.
The 2006 Honda Civic is a gas-powered vehicle.