getting code PCM P0140

Txhemirt · Jun 14, 2017

Little back ground on truck, catless long tubes and only front two 02s are actually in, the other two in rear are connected but not inserted (zip tied to frame) hemifever tune and ran the truck Sunday. Turned it on today and cel popped up on start up. Any ideas where to start guys?

shane1981 · Jun 14, 2017

id put the sensors in and reset the codes

tuned by jay greene

Ajwalk2008 · Jun 15, 2017

Did you have hemi fever turn the rear o2s off?

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michaelrc51 · Jun 17, 2017

Most likely you have shorted something out it when you zip tied it to the frame.

It has a reference voltage to read how rich or lean it is. The rear 02 sensors aren't for tuning. The code will only come up if it sees a short or open in this circuit.

Txhemirt · Jun 18, 2017

shane1981 said:
id put the sensors in and reset the codes

tuned by jay greene

Ordered extensions to do this, hoping it works

Ajwalk2008 said:
Did you have hemi fever turn the rear o2s off?

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From everything I have been told and read, this truck gen has to have the rear 02s even if they aren't plugged in

michaelrc51 said:
Most likely you have shorted something out it when you zip tied it to the frame.

It has a reference voltage to read how rich or lean it is. The rear 02 sensors aren't for tuning. The code will only come up if it sees a short or open in this circuit.

Hoping this is not the case but with my luck very likely. Will keep y'all posted

Ajwalk2008 · Jun 18, 2017

I would contact hemi fever and see what he says

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getting code PCM P0140

Txhemirt

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shane1981

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Ajwalk2008

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michaelrc51

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Txhemirt

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Ajwalk2008

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