Question about Cars & Trucks
Starting it will reeve up and rpms showing 1200 no acceleration on gas pedal. after running so long, shut if off and all will be fine
Sorry to say the code is for an internal problem with the computer.
It could be a loss of power for the memory, or a faulty computer.
If it looses power, it has to relearn the basic settings much like a digital clock switching to 12 noon when you unplug it.
The computer gets power from the battery for the memory part and from the key switch for everything else.
The code will set if you disconnect the battery with the key on.
Posted on Jan 23, 2013
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Posted on Jan 02, 2017
Just trowing some suggestions out there, but, I would check the idle air control valve (solenoid) or the throttle position sensor. If they check out then my last guess would be the map sensor or the vaccuum to the map sensor. Hope I was able to help. Best wishes.
Posted on Jan 17, 2009
If this engine is a VORTEC then you may have a problem with the internal fuel system. Under the top plenum there is a fuel reg and poppet valves that inject fuel into the cylinders. Sometimes the tubes that run fuel from the reg to the valves can leak and cause your problem. This cannot be found with pressure check because this occurrs after the reg. PS fuel mileage will go down. Let me know if this helps.Moe
Posted on May 26, 2009
P0601 is an internal PCM failure, meaning it didn't pass one or more of its self-tests. If it is running ok and you don't mind the light being on, drive it. A replacement is several hundred dollars depending on where you are and the market value of the area dealerships.
Posted on Jun 23, 2009
Check the variable timing sprockes on the camshafts, they come with wimpy rivets to hold them if they break the car runs like it have bad spark plugs of timing is wrong.
Posted on Jul 16, 2009
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