Want this question answered?
Yes
A faulty EGR valve can cause a 98 Chevy to fail a smog test. The oxygen sensors should also be tested as they can also cause a 98 Chevy to fail a smog test.
yes it can. also check knock sensor and the wire going to it
A malfunctioning oxygen sensor can cause the engine to be low on power.
The car will start and run poorly in the limp mode and the check engine light will illuminate.
Not directly. The oxygen sensor measures oxygen levels in the exhaust. The computer uses that to calculate fuel and spark timing. If an oxygen sensor is malfunctioning, it could cause idle problems.Not directly. The oxygen sensor measures oxygen levels in the exhaust. The computer uses that to calculate fuel and spark timing. If an oxygen sensor is malfunctioning, it could cause idle problems.
NO. That means the engine is running too hot. Check cooling system.
It sure can.
will a bad crank shaft sensor make a 2005 chevy equinox not start
A bad engine temp sensor can do that.
A faulty crank sensor would cause no spark and no fuel.
There are several things that can cause your day time running the light relay switch to malfunction in your 2001 Chevy. The most common cause is a loose or corroded ground wire.