Hello everyone,
I have a 2006 civic, R18A, automatic transmission. My problem is as follows:
Recently, I took the car for service due to some shuttering. The service center replaced two coils and my spark plugs and cleaned the throttle body.
Now, the idle rpm when cold start is between 1500 and 2000.
When the car is hot the idle goes down to between 900 and 1100 rpm.
While in park or neutral, if I press the gas pedal for a second, the rpm goes up to whatever rpm like 2500 for example then it starts going down to around 1000 then it surges to 1700 then it starts going down again to settle at around 1500.
I also started to experience a brake problem in traffic jams or when i hit the brakes hard, the brake pedal gets stiff and the brake becomes inefficient.
To solve the problem, I tried to reprogram the ECM/PCM with no luck. I also tried to do the idle learning procedure, also didn't work. I also replaced the whole throttle body and didn't work.
I also bled the cooling system from air bubbles. but i still have the same problem.
I would appreciate any help possible regarding this problem because it is driving me crazy.
Thank you
I have a 2006 civic, R18A, automatic transmission. My problem is as follows:
Recently, I took the car for service due to some shuttering. The service center replaced two coils and my spark plugs and cleaned the throttle body.
Now, the idle rpm when cold start is between 1500 and 2000.
When the car is hot the idle goes down to between 900 and 1100 rpm.
While in park or neutral, if I press the gas pedal for a second, the rpm goes up to whatever rpm like 2500 for example then it starts going down to around 1000 then it surges to 1700 then it starts going down again to settle at around 1500.
I also started to experience a brake problem in traffic jams or when i hit the brakes hard, the brake pedal gets stiff and the brake becomes inefficient.
To solve the problem, I tried to reprogram the ECM/PCM with no luck. I also tried to do the idle learning procedure, also didn't work. I also replaced the whole throttle body and didn't work.
I also bled the cooling system from air bubbles. but i still have the same problem.
I would appreciate any help possible regarding this problem because it is driving me crazy.
Thank you