Yes , for many reasons. Bad/dirty electrical ground circuit will cause different sensor(s) to report incorrect information back to the computer & illuminate check engine lamp. An over or undercharging alternator will cause check engine lamp to illuminate. Easiest way to repair is to determine what computer code is stored in computer as a result of the lamp being on. Once the code has been determined , then the appropriate diagnostics can be started.
No. It is illegal, will cause a check engine light and running problems.No. It is illegal, will cause a check engine light and running problems.
A low battery can cause the electrical system to flash check engine lights
try checking out the battery cables. If they are bad they can cause horrific electrical problems. Next check the grounds in the engine compartment. Next check the relays for the ignition on in the power distribution block box in the engine compartment. Somewhere to start.
Yes, it can cause check engine light to come on. Reasons are multiple - anything from air/vacuum leak, spark problems etc. to major failure.
The main relay will give an check engine light to indicate that the electrical system is bad.
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.
It could cause the check engine light to come on with a code concerning cooling system/thermostat performance.It could cause the check engine light to come on with a code concerning cooling system/thermostat performance.
The check engine light is a general indication for a variety of problems. Most commonly it is a loose gas cap, oxygen sensor, MAP sensor, vacuum hose leak or faulty electrical. You need to have it read with a code reader to find the exact problem.
My guess would be a bad ground, but that is just an educated guess. The check engine light should have nothing to do with this. The check engine light indicates an emissions problem. Good luck finding the electrical problem, as these are the hardest problems to find. You need to have the computer scanned for fault codes.
Check engine lights can come on for a number of reasons. If you didn't get the cable right or got a sparks when connecting or disconnecting that could most definitely cause problems with the check engine light or even blow the alternator fuse.
Most likely your output speed sensor. But, could be other electrical problems. Check for corrossion (and clean) on battery terminals and the negative cable terminal where it bolts to the engine. You should have an engine code that will give you some information if you hook up a code reader.
If you have a "check engine" light on, start with having the codes read. A misfire code can tell you which cylinder or cylinders are having problems. A misfire could be the cause of your engine vibration.