Bad Throttle Position Sensor?

[dieseldirt]

I recently replaced my CPS with a motorcraft blue CPS and it seems to have cured my stalling problem, but now I have a new problem: sometimes starting out from a stop in Forward or Reverse, the throttle pedal does not work and check engine light comes on.. THis continues for a few seconds, and then all back to normal. I know I need to get the codes read.. Any ideas what this issue could be? '97 PSD with E4OD.

 

[79jasper]

Okay, down on the peddle is a little switch. It's called the IVS (idle validation switch)
You may need to bend the contacting tab a little.
When you push the pedal, you should hear the IVS click.


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[dieseldirt]

OK thanks.. And this IVS will make the check engine light come on and then go right back off?

 

[79jasper]

Yes.
I had played with mine trying to get a less touchy throttle and went to far. It would pop the light.
I would just depress the switch with a screwdriver, then be good to go til I shut it off and restarted it.
Ended up just bending it back a little.


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