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Anyone know if there is an OBD  PID for idle mode? Say for instance my truck had a weird lopey idle and I suspected that the APPS is rapidly jumping from idle mode to off-idle (because the truck also jumps out of fast-idle mode when it's cold). I know I can check it with a meter, but I was hoping I could monitor it from obd.

 

Thanks.

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The OBDlink can monitor the TPS. That would tell you if it is jumping around.

 

L8tr

D

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obdlink will tell you if there is throttle input, but not if the IVS is switching on and off.  

 

Idle state is controlled by another "function" of the apps.

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Sigh, that's what I was afraid of. Ya my OBD setup (Torque Pro) just bottoms out the throttle at 9%. It's a common issue and doesn't really tell me anything unfortunately.

 

Thanks for the confirmation.

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Posted (edited)

If it was me I would just change out for a Timbo's APPS being it fully a mechanical APPS sensor and no electronics. Then it a matter of angle to trip the IVS switches than voltage. As long as the angle is right then the IVS should be in the idle position.

 

TPS should show 0% at idle. 

 

If you've done any voltage adjustment that is what screwed it up. NEVER adjust the voltage of the APPS to match the tag. 

Edited by Mopar1973Man

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On 4/17/2018 at 8:37 PM, Me78569 said:

obdlink will tell you if there is throttle input, but not if the IVS is switching on and off.  

 

Idle state is controlled by another "function" of the apps.

I stand corrected and figured that after postings. Thx

 

L8tr

D

 

I still have much to learn

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On 4/18/2018 at 8:27 AM, Mopar1973Man said:

If it was me I would just change out for a Timbo's APPS being it fully a mechanical APPS sensor and no electronics. Then it a matter of angle to trip the IVS switches than voltage. As long as the angle is right then the IVS should be in the idle position.

 

 

I have a Banks Brake and I don't think the Timbo will work with a Banks, otherwise I'd get one. Haven't made any adjustments, although I've read your info on how to do it properly (I tested the APPS with a meter maybe 4 years ago and everything checked out fine). Still the original APPS after 20 years and 280k miles.

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Most definitely will. Had the Timbo on mine long before the Banks EB.

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11 hours ago, dripley said:

Most definitely will. Had the Timbo on mine long before the Banks EB.

 

Good to know, thanks!

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