WHITMAN The problem with my Acura is when I initually start the car, I let the idle for about 30 seconds. After 30 seconds the engine light comes and a couple of seconds after that the drive 4 light start blinking. I can let the car warm up for a while or driver a couple of miles turn the car off, start it up again and the light stays off and drive 4 blinking stop.

The oil light should come on while you start the car and then when it starts, the oil light should go off.
Id it is xoming kn at any other time, you may be low on oil and need to check it and add oil as necessary. If the oil level is above the add mark you should be oK. But make sure you check it when the car has been off and idle idle long enough for the oil to drain from the engine and return to the oil pan. If it persists, it could be the oil pressure sending unit or a loose or worn electrical connection. If the light still comes on, take it to a certified mechanic for diagnosis. It could be the oil pump.

what kind of car?

Idle air control valve, (IAC) check for low coolant, (only when the engine is cold). Low coolant can cause the IAC to malfunction. Or a vacuum leak.

Hi Gabro
try this procedure and let me know if it work.make sure the engine is in normal temperature, all accessories are off.
start the engine and let it idle for 1 minute.
put the selector into D and let the engine idle for 30 seconds.
turn the AC on and let the engine idle for 30 seconds.
turn the AC off and let the engine idle for 30 seconds.
put the selector into P and let the engine idle for 30 seconds.
switch engine OFF for 2 minutes.

Try the procedure below.

Here are the most common causes of idle surge, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

There's none available....One way is to get the problem fixed and have the shop turn it off OR, Unhook your battery cable for 15-30 seconds. That should reset it...Keep in mind that if hte problem isn't fixed, The light will simply come back on.....

this may mean its time for an oil change it's the cars way of saying it's time for a scheduled maintenance.
Turn the key off and push and hold the select button. Keep holding while you turn the key to the on position (not the start position) keep holding for about 15 seconds then turn the key back off . next turn the key back to on position the light should only come on once. now you can start the car

Im not quite sure about the lights but when changing the alternator the battery cables would have been off resetting the settings in the engine computer. let it run for a little bit to get readjusted and it should idle down on its own and be fine.

turn the ignition key to the acc or lock position with the odometer reading showing.

while holding the trip/reset button turn the ignition to the on position. light should flash and go out!

reset done. if you have any more issues plese ask. good luck

I had the same problems with my Acura Legend. On the problem with the running hot and the idling up and down, your cooling system is low. Fill your cooling system start it up and look for leaks, steam, or etc. repair and refill and your problem should be cured if the cooling system is full. At this time i'm working on the other problem. Good Luck