When the lite is on the engine runs on a set of specs. When itis off, the computer controls the mixture. Have the codes read and repair what is causing the light. Does this seem to happen at different times? Does it seem to happen when you attempt to start the car after it has reached operating temp? Does it just happen when youslow or stop for a light and stall the engine? If you say yes to any of these questions, it may be the cold start sensor. This was a pretty common problem when the car first came out and had GM baffled for a while. Replace the sensor and it should fix the problem. The sensor acts like a choke whencold, giving a rich fuel mixture for cold start. When it goes bad, it gets confused and will give a rich mixture after the engine comes to operating temp and flood the engine. To start a flooded engine, take off the top of the air cleaner, unplug the injectors, start the engine and burn out the fuel. Just before the engine stalls, plug in the injectors and the computer will reset for a while and the car will run fine until next time the sensor gets confused.
Check the fuse box in the engine compartment
Emission Components - usually
Causes for the check engine light to come on in a 1981 Chevy Corvette include overheating, low oil pressure, and a bad alternator. Because this car is not equipped with a computer, it has limited self diagnostic abilities.
.The check engine light can be reset, after you install a new air intake, by removing the instrument panel fuse. The fuse can be located in the fuse box
check your sensor on the back of the engine block and under the intake manifold, passenger side. check your sensor on the back of the engine block and under the intake manifold, passenger side.
it could be an issue related to your oxygen intake check oxy sensors if check engine light is on.
Need to check the 4 corners on the intake manifold. It is common for the intake to leak engine coolant.
Not normally.Not normally.
check the battery and connections/cables
A flashing check engine light normally means you have a misfire.
CHECK THE TIMING
I don't have an answer for you except that you can go to Autozone and they will check your computer for free if your check engine light is on. I don't know what year model this starts at, but it's worth a try so that you don't have to guess!
I had the same problem. Took it into the dealer and it ran me about $1,000. Blown head gasket in my intake. In other words, this car is no Corvette, lol.
There isn't an individual fuse. It is run by the engine computer. Check the vacuum line running from the intake to the cruise servo.There isn't an individual fuse. It is run by the engine computer. Check the vacuum line running from the intake to the cruise servo.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Water is in your engine. Check intake and head gaskets.
Car on level ground. Engine warm- low idle. Parking brake must be working, Engine running, transmission in neutral. Check transmission dip stick.
Check the black hose between the throttle body and intake manifold.Check the black hose between the throttle body and intake manifold.
Crack in intake or exhust, or belt glazing- Check all the intake and exhust bolts.
yes, but will take a lot of money and time.Motor mounts, computer, tranny adapter, cutting of the firewall etc etc Check out any of the corvette forums, people have been putting in ls motors for years good luck
90% of the time it is a vacum leak check all ur hoses goin to the intake also check the idle air control valve on the back of the intake
There are 2 knock sensor on the 5.3L engine. And they are under the intake manifold. To get to them you will have to remove the whole top of the engine- INTAKE MANIFOLD. Why do you think they need replaced???? check engine light came on for 2 sensor