Engine stuck in high idle
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Senior User
Joined: Jan 2011
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Engine stuck in high idle
I have a 2002 f250 auto 7.3
I am having a strange problem.
When driving the engine idles at 900 or 800, which I assume is high idle.
If I shift out of drive to neutral and back to drive it goes away, and idle how it should. 650 rum
Icp, ipr, ebps, ebps tube, regulated return, fuel mods good pressure, and new trans range sensor
What could be causing this, and what should be my next trouble shooting step? I am so lost on this thing.
Please and thank you
I am having a strange problem.
When driving the engine idles at 900 or 800, which I assume is high idle.
If I shift out of drive to neutral and back to drive it goes away, and idle how it should. 650 rum
Icp, ipr, ebps, ebps tube, regulated return, fuel mods good pressure, and new trans range sensor
What could be causing this, and what should be my next trouble shooting step? I am so lost on this thing.
Please and thank you
Cargo Master
Joined: Mar 2006
Posts: 2,502
Likes: 2
From: Bend Oregon
My first "next" step would be to monitor entgine oil temp and outside air temp, make sure they are reporting something that makes sense.
You also may want to take a look at the throttle position sensor....
You also may want to take a look at the throttle position sensor....
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Senior User
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I am going to scan for codes again after work.
Last time I got an high ebps reading code, so I put on a new sensor last night to take care of that.
The only other thing was AIH circuit low or something due to the delete mod.
Last time I got an high ebps reading code, so I put on a new sensor last night to take care of that.
The only other thing was AIH circuit low or something due to the delete mod.
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Senior User
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Scan codes and only found was AIH circuit low because of my delete mod.
One thing I did notice is that my Map and my Ebps are not reading the same with KOEO???
Map was at 13.1
And ebps was at 14.9
Koen was:
Map 13.1 still
Ebps was 15.1
Could this be it!
One thing I did notice is that my Map and my Ebps are not reading the same with KOEO???
Map was at 13.1
And ebps was at 14.9
Koen was:
Map 13.1 still
Ebps was 15.1
Could this be it!
More Turbo
Joined: May 2016
Posts: 717
Likes: 9
First question is: Do your Brake lights work? And, your Parking Brake Light on the dash. Either should disable the fast idle.
Second, try disconnecting both the EVB Tube Sensor and EBPV Plug.
Third, check your MAP hose for a loose connection or hole.
Lastly, monitor Sensor Voltage rather than values.
BARO: 5 Volt Reference Circuit, @ 4.6 volts / 14.7 psig at sea level, decreasing as altitude increases.
EBP: 5.0 volts Reference Circuit, 0.8-1.0 vdc / 14.7 psig
EOT: 5 Volt Reference Circuit, 4.37 vdc @ 32°F, 1.37volts @ 176°F, 0.96volts @ 205°F.
IAT: 5 Volt Reference Circuit, 3.897 vdc @ 32°F, 3.09 @ 68°F, 1.72 @ 122°F.
Second, try disconnecting both the EVB Tube Sensor and EBPV Plug.
Third, check your MAP hose for a loose connection or hole.
Lastly, monitor Sensor Voltage rather than values.
BARO: 5 Volt Reference Circuit, @ 4.6 volts / 14.7 psig at sea level, decreasing as altitude increases.
EBP: 5.0 volts Reference Circuit, 0.8-1.0 vdc / 14.7 psig
EOT: 5 Volt Reference Circuit, 4.37 vdc @ 32°F, 1.37volts @ 176°F, 0.96volts @ 205°F.
IAT: 5 Volt Reference Circuit, 3.897 vdc @ 32°F, 3.09 @ 68°F, 1.72 @ 122°F.
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Thread Starter
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Senior User
Joined: Jan 2011
Posts: 275
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First question is: Do your Brake lights work? And, your Parking Brake Light on the dash. Either should disable the fast idle.
Second, try disconnecting both the EVB Tube Sensor and EBPV Plug.
Third, check your MAP hose for a loose connection or hole.
Lastly, monitor Sensor Voltage rather than values.
BARO: 5 Volt Reference Circuit, @ 4.6 volts / 14.7 psig at sea level, decreasing as altitude increases.
EBP: 5.0 volts Reference Circuit, 0.8-1.0 vdc / 14.7 psig
EOT: 5 Volt Reference Circuit, 4.37 vdc @ 32°F, 1.37volts @ 176°F, 0.96volts @ 205°F.
IAT: 5 Volt Reference Circuit, 3.897 vdc @ 32°F, 3.09 @ 68°F, 1.72 @ 122°F.
Second, try disconnecting both the EVB Tube Sensor and EBPV Plug.
Third, check your MAP hose for a loose connection or hole.
Lastly, monitor Sensor Voltage rather than values.
BARO: 5 Volt Reference Circuit, @ 4.6 volts / 14.7 psig at sea level, decreasing as altitude increases.
EBP: 5.0 volts Reference Circuit, 0.8-1.0 vdc / 14.7 psig
EOT: 5 Volt Reference Circuit, 4.37 vdc @ 32°F, 1.37volts @ 176°F, 0.96volts @ 205°F.
IAT: 5 Volt Reference Circuit, 3.897 vdc @ 32°F, 3.09 @ 68°F, 1.72 @ 122°F.
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