READING CODES PO340 AND PO300

  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

After cleaning the IAC, what are your present issues?
You need not follow the troubleshooting to the dot. You stop when the problem is resolved.

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Saturday, September 15th, 2012 AT 6:32 PM
  • Tiny
  • zuky
  • Member

Okay I need to know how many volts from the iac plug that plugs into iac is suposed to read? Im reading 9.33v and the iac is not openning at this voltage, But when I use a jumper wire from 12 v battery it opens.

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Saturday, September 15th, 2012 AT 7:43 PM
  • Tiny
  • zuky
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I also reinstalled the iac and started motor idle is still high and after warm up it idle come down to a stall out motor, I took a code reading and po505 is gone, but Im reading a po510

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Saturday, September 15th, 2012 AT 8:11 PM
  • Tiny
  • KHLow2008
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  • 41,997 posts

You don't seem to be doing things correctly and instead of solving one problem, you created another.

P0510 is a fault with the TPS.

When cold the idle rpm would be high due to the cold start system.

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Saturday, September 15th, 2012 AT 10:58 PM
  • Tiny
  • zuky
  • Member

How would u know or even say that when u just jumped on board with whats going on with the car Im working on? Who are u anyway? I was dealing with saturntech9 and out of no where u appear! Its hard enough with one person and than switch to someone who doesnt know where Im at, at this point, This car has had a high idle from the beginning, You never answered my question about how many volts is supposed to be coming through the iac plug?

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Sunday, September 16th, 2012 AT 12:44 AM
  • Tiny
  • saturntech9
  • Expert
  • 29,311 posts

The blue wire with a black tracer going to the iac should have battery voltage with the key in the run position?It gets power from the fuel injector power feed wires.

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Sunday, September 16th, 2012 AT 2:04 AM
  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

I had been following what you had been doing from start till now and knows what is going on.

Sorry for being nosey parker. Have a nice day since I am not welcomed here.

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Sunday, September 16th, 2012 AT 6:29 AM
  • Tiny
  • zuky
  • Member

Okay this is to saturn9, Motor has come a long way from the start of all this the idle is still to high even when hot, the surgeing has stopped, there are no codes after I took it for a ride. But idle is not stable sometimes it will go so low it stalls motor

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Sunday, September 16th, 2012 AT 2:24 PM
  • Tiny
  • zuky
  • Member

One more thing Im not sure this iac is operateing properly. Trouble tree says to turn key in on position and blow through air tube to see if iac switch is open, It is not open cannot blow through tube.

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Sunday, September 16th, 2012 AT 3:51 PM
  • Tiny
  • saturntech9
  • Expert
  • 29,311 posts

So do you have battery voltage on that wire I asked you about with the key in the run position?

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Sunday, September 16th, 2012 AT 4:17 PM

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