On some cars it could, depends on code.
Its the code for the torque converter clutch solenoid.
A failed catalytic converter is one of hundreds of parts that can cause the check engine light to be on.
PO740 is a Chrysler specific code that involves your Torque Converter Clutch Circuit The problem could be in the TCC solenoid, or the torque converter itself.
So the torque converter and oil cooler are full.
torque converter clutch solenoid circuit
If you have repaired the cause of the light, the computer has to run the appropriate test and pass three times to clear the light.
(torque converter clutch circuit performance or stuck on)
A flashing check engine light means that you have a problem with your engine that may cause harm to the catalytic converter.
A flashing check engine light is due to a condition that is causing catalytic converter damage. Normal cause is a severe misfireA flashing check engine light is due to a condition that is causing catalytic converter damage. Normal cause is a severe misfire
Will the engine turn over at all... if it doesnt then it could be the lock up torque converter solenoid... if the engine will turn is the starter working properly, if it is then check for fuel and spark to further eliminate the problem. Ive disconnected my lock up torque converter solenoid just to pretty much get rid of it, cause its bad when they start going bad, locking up when they arent surpost to and kill the engine... they can cause the engine to buck around on you.
It's illegal and will cause your check engine light to go on
It will cause the check engine light to come on with no benefits.