1995 F-350 7.3 Powerstroke
Diagnostic trouble codes:
P0113(IAT Circuit High Input)
P0237(Turbocharger Boost Sensor A Circuit Low)
P1282(Excessive ICP)
P1211(ICP Pressure Above/Below Desired)
P0708(Trans Range Sensor Circuit High Input)
So when I start the motor, it will run normal for about
6 seconds. Then the rpm's will jump up to around 800-900 rpms
and the idle will become very lopy. When I put it into gear
the lope will go away but it will still have that high idle,
so the lope will only occur in park and neutral. The high
idle/lope will not go away until I shut the motor off. This
always happens, its not a random thing. It happens whether or
not its hot or cold, and it never smokes at all anytime. The
motor has never died on me either. I just purchased the truck
about 2 weeks ago with this problem so I'm not sure how long
this has been happening. When I bought it, the check engine
light was on all the time. The first time I took it to a
mechanic, he found that the ICP Soleniod was missing, and so
was the Ambient Air Tempenture Sensor. So I bought both parts
and installed them both. However when I installed the
Injection Control Pressure Regulator, I only installed the
Solenoid, as that was the only part that was missing and
replacing the internal component is kind of difficult. After
installing both of those parts I started it up and it had the
same idling issues, but the motor seemed to run better. And
now the check engine light only comes on when the idling
issues start. When I took it to a mechanic today, he read the
ICP while it was running and the pressures read something
like this. At startup around 3100psi, after idling issues
kicked in it flatlined at 725psi and did NOT fluctuate with
an increase in rpm. I have no idea what could cause this, the
mechanic told me I should have around 550psi at idle, and it
would increase with the rpms. Does anybody know how to fix
this? I listed the most recent check engine light codes
above.
P.S.- Sorry for the long paragraph, I just wanted to explain
everything.
Diagnostic trouble codes:
P0113(IAT Circuit High Input)
P0237(Turbocharger Boost Sensor A Circuit Low)
P1282(Excessive ICP)
P1211(ICP Pressure Above/Below Desired)
P0708(Trans Range Sensor Circuit High Input)
So when I start the motor, it will run normal for about
6 seconds. Then the rpm's will jump up to around 800-900 rpms
and the idle will become very lopy. When I put it into gear
the lope will go away but it will still have that high idle,
so the lope will only occur in park and neutral. The high
idle/lope will not go away until I shut the motor off. This
always happens, its not a random thing. It happens whether or
not its hot or cold, and it never smokes at all anytime. The
motor has never died on me either. I just purchased the truck
about 2 weeks ago with this problem so I'm not sure how long
this has been happening. When I bought it, the check engine
light was on all the time. The first time I took it to a
mechanic, he found that the ICP Soleniod was missing, and so
was the Ambient Air Tempenture Sensor. So I bought both parts
and installed them both. However when I installed the
Injection Control Pressure Regulator, I only installed the
Solenoid, as that was the only part that was missing and
replacing the internal component is kind of difficult. After
installing both of those parts I started it up and it had the
same idling issues, but the motor seemed to run better. And
now the check engine light only comes on when the idling
issues start. When I took it to a mechanic today, he read the
ICP while it was running and the pressures read something
like this. At startup around 3100psi, after idling issues
kicked in it flatlined at 725psi and did NOT fluctuate with
an increase in rpm. I have no idea what could cause this, the
mechanic told me I should have around 550psi at idle, and it
would increase with the rpms. Does anybody know how to fix
this? I listed the most recent check engine light codes
above.
P.S.- Sorry for the long paragraph, I just wanted to explain
everything.
