Q: New computer works fine, but the car is idling at 3000 rpm

asked by on

I just put in a new computer after my car died and was throwing code p0601 (pcm memory fault). I have no doubt the computer is working because the car runs once I put the new pcm in. But it's idling at 3000 rpm. Do I need to drive it to get the sensors reacquainted? When I put the car in drive the Rpms go to about 1600.

My car has 156235 miles.
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. New computer works fine, but the car is idling at 3000 rpm

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car shakes and smoke coming out of engine

I have run into this problem before. The exhaust manifold coolant vent hoses melt and cause coolant to leak. The engine will then overheat because it can not hold pressure causing it to start shaking. I would recommend having a...

Q: Loud ticking/soft knocking in engine is worse after tune up

The inconsistent idle is probably due to an engine management/sensor issue which would include the IAC valve but quite a few other components are possible causes, too. Mechanical engine noises stem from wear and damage. You might get some insight...

Q: Plugs not sparking.

Hi there! Spark plugs usually stop working due to old age. Spark plugs conduct electricity through the electrode of the spark plugs to ignite the fuel. An electrode will become shorter after each ignition just as a candle wick would....

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.