Multiple Engine codes

daltonamorph · **Posted:** Wed Jul 07, 2010 10:58 pm

I just had my valve spring replaced today after about a month of waiting. We thought, and the mechanic said everything should be good-It idles fine. Well as i pulled out of the garage, it seems that every time its about to doo doo out of first it sputters and jumps forward as if im pumping the pedal. i pulled the codes:
P0108- MAP Sensor Voltage Too High
P0113- Intake Air Temp Sensor Voltage Too High
P0118- Engine Coolant Temp Sensor Voltage Too High
P0123- Throttle Position Sensor #1 Voltage High
P0533- A/C Sending Unit Volts Too High
P0685- ASD Relay Control Circuit
P0688- ASD Relay Sense Circuit Low

Can anyone help me out? I honestly don't know where to start...
Thank you, Dalton

tjkj2002 · **Posted:** Wed Jul 07, 2010 11:06 pm

Well almost all of those codes are referring to sensors that get a 5v reference voltage,sounds like a bad PCM.Last vehicle I had to diag with pretty much the same codes(but with about 6 more) ended up being a bad PCM,ran great though,but terrible mpg's.

daltonamorph · **Posted:** Wed Jul 07, 2010 11:10 pm

So do i need to buy a new PCM? And would that explain the shuttering and jumping forward?

tjkj2002 · **Posted:** Wed Jul 07, 2010 11:17 pm

daltonamorph wrote:

So do i need to buy a new PCM? And would that explain the shuttering and jumping forward?

better let the dealer diag it 1st,always pay the diag fee as it is a warranty,if they tell you it's this part and that parts does not fix it you pay nothing for it and they still have to fix it on there dime(free for you).Well worth the $100-$150 for the diag fee.

daltonamorph · **Posted:** Wed Jul 07, 2010 11:24 pm

Its is out of warranty with 73,000 miles. it would still be a good idea to have it diagnosed before i do anything correct?

tjkj2002 · **Posted:** Wed Jul 07, 2010 11:30 pm

daltonamorph wrote:

Its is out of warranty with 73,000 miles. it would still be a good idea to have it diagnosed before i do anything correct?

Yes.It will have to go to the dealership anyways to program the VIN and stuff in the new PCM anyways.

daltonamorph · **Posted:** Wed Jul 07, 2010 11:54 pm

Other then the mpg's, would it hurt anything to wait a Month or 2 to take it to the dealer and buy a new one if that's the problem?

Multiple Engine codes

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