The primary cause for no diagnostic reading to be available on a 2001 Cavalier is a faulty connection or code reader. The computer is designed to automatically transmit codes once an ODBII code reader is connected to the port.
with me it was the o2 censer
yes
No it will not cause it not to run.
There are several things that can cause your 1995 Chevy Cavalier transmission not to go into drive or reverse. The most common cause is a lack of transmission fluid. A broken shifting fork will also cause the problem.
This condition lowers accuracy and comprehension in reading
possible grounded or bare wire
The 2005 Cavalier could have a fuel leak. Have the entire fuel system checked, as a fuel leak can cause a dangerous fire.
freon needs to be charged
Low fuel pressure
1979? 1982 is first year. Answer I a '97 Cavalier.. It probably sounds like loose lumber. That will be the UPPER rear shock MOUNT.
If you where your reading glasses too long you acually can get a headache.
There could be a problem with the power of common ground to the Cavalier light and sun roof. Check the fuses and wiring for the problem.