No throttle response
Thread Starter
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Joined: May 2004
Posts: 516
Likes: 1
From: Upstate NY
No throttle response
A guy I work with just told me his truck has no throttle responce. He installed gauges (boost, pyro, fuel pressure) over the weekend and now it will no go over an idle. He unhooked the wiring for the gauges, checked fuses and still nothing. I'm drawing a blank. He said that the lower sensor on the spider has no voltage. That is just for IAT correct? I'm going to bring my scanner in tomorrow and see what we can find. Just wondering if anyone has any info would be appreciated. Sorry for the limited info to go on for now.
Thanks
Thanks
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
What year is his truck?
Sounds like an IVS (Idle Validation Switch) problem. It is usually a blown fuse #19 10A under the dash on a 99-01.
Fuse 19 is for: Auxiliary Powertrain Control Module, Instrument Cluster, GEM Module, Overdrive Cancel Switch, Clutch Switch, Idle Validation
Switch, Overhead Console, Dash Reset Relay (Bi-Fuel)
Or he may have knocked the throttle position connector loose at the throttle pedal.
Sounds like an IVS (Idle Validation Switch) problem. It is usually a blown fuse #19 10A under the dash on a 99-01.
Fuse 19 is for: Auxiliary Powertrain Control Module, Instrument Cluster, GEM Module, Overdrive Cancel Switch, Clutch Switch, Idle Validation
Switch, Overhead Console, Dash Reset Relay (Bi-Fuel)
Or he may have knocked the throttle position connector loose at the throttle pedal.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
I can't find the IVS fuse for a 2002.
See if your scanner can monitor the state of the IVS. You should get an OFF or ON or a 0 or 1.
The IVS needs to close and signal PCM before PCM will respond to the TPS.
See if your scanner can monitor the state of the IVS. You should get an OFF or ON or a 0 or 1.
The IVS needs to close and signal PCM before PCM will respond to the TPS.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Jason,
I found the link to Ken's (woodnthings) No Peddle Response & No Gauges Problem. Might be some help.
I found the link to Ken's (woodnthings) No Peddle Response & No Gauges Problem. Might be some help.
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is a BAAAD MAN
Joined: Apr 2005
Posts: 3,738
Likes: 5
From: Winston Salem NC
When my excursion did that it was a blown fuse caused by the wires on the shifter rubbing and randomly blowing the fuse. I bought a new shift lever because I couldn't see where they were rubbing and we were leaving on vacation soon. I can't remember which fuse it was but it's marked in my manual haha.
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Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Either there is no power to the TPS or the TPS is bad. You have a 2001. If his is a 99 to 2001 you can put your TPS on his.
Only takes about 5 minutes. 2 Torx screws and 1 connector and you don't have to remove the throttle assembly.
Only takes about 5 minutes. 2 Torx screws and 1 connector and you don't have to remove the throttle assembly.
Elder User
Joined: Jun 2007
Posts: 705
Likes: 1
From: Sandia Park, NM
Accelerator pedal assy. I got my assy from ford for around $80 IIRC. It's both switches and the whole pedal. If u were in NM I'd give you my old one since the new one did not fix my problem.