under the passanger seat there is a piece of carpet that folds up
Civic 91 LX still dont have Obd Port on it. Obd is Usually use for a car with ECU (electronic control unit).
Yes
nO
Right under the dash on your driver side
The transmission on a SAAB 900 is mounted directly on the bottom of the engine. That clanking is likely coming from a broken tooth on a gear.
There is no obd port. You can peel back the carpet under the passenger foot area and reveal the ecu. From there you can read the led flashes to find out what codes are being displayed.
098
.040"
0.035 inches
0.035
Its a drain plug incase your car ever gets flooded.
no 91 crx takes a 5/8 spark plug socket