I have a 2001 3.8 V6 camaro that idles fast, has the "reduced engine power" & "service engine soon" lights on, and it won't do more than 15 mph. I'm pulling a 0507 code. Does anyone know the best way to fix this?

 

• A vacuum leak
  
• Leaking air intake after the throttle body
• EGR leaking vacuum
• A faulty positive crankcase ventilation (PCV) valve
• Damaged/failed/dirty throttle body
  
• Failed EVAP system
• Failed IAC (idle air controller) or faulty IAC circuit

most common reasons for a p0507 id suggest you go from cheapest to most expensive
when i had this code it was because my intake air temperature sensor on the intake (the small sensor) was disconnected

 

This should help:

Document ID# 673810
2001 Chevrolet/Geo Camaro


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DTC P0507
Circuit Description
The throttle actuator (TAC) motor is controlled by the TAC module using various inputs from the powertrain control module (PCM) which are communicated across serial data. The DC motor located on the throttle body drives the throttle plate. In order to decrease idle speed, the TAC module commands the throttle closed reducing air flow into the engine and the idle speed decreases. In order to increase idle speed, the TAC module commands the throttle plate open allowing more air to bypass the throttle plate. If the actual idle RPM does not match the desired idle RPM within a calibrated time, this DTC sets.

Conditions for Running the DTC
DTCs P0101, P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0171, P0172, P0174, P0175, P0200-P0206, P0300, P0336, P0401, P0403, P0404, P0405, P0502, P0503, P1112, P1114, P1115, P1120, P1220, P1221, P1374, P1380, or P1381 are not set:
The engine is operating for at least 2 minutes.
The engine coolant temperature (ECT) is more than -40°C (-40°F).
The intake air temperature (IAT) is more than -40°C (-40°F).
The barometric pressure (BARO) is more than 65 kPa.
The system voltage is between 9-18 volts.
The vehicle speed is less than 4.8 km/h (3 mph).
The accelerator pedal position (APP) indicated angle is less than 0.25 percent.
Conditions for Setting the DTC
The actual idle speed is approximately 175 RPM higher than the desired idle speed.
All above conditions present for 15 seconds.
Action Taken When the DTC Sets
The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records.
Conditions for Clearing the MIL/DTC
The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
Clear the MIL and the DTC with a scan tool.
Diagnostic Aids
If the condition is intermittent, refer to Intermittent Conditions .

Test Description
The number below refers to the step number on the diagnostic table.

This test determines whether the engine can achieve the commanded RPM, and if not, whether the RPM is too high or too low.

Step
Action
Yes
No

Schematic Reference: Engine Controls Schematics

1
Did you perform the Diagnostic System Check-Engine Control?
Go to Step 2
Go to Diagnostic System Check - Engine Controls

2
Start the engine.
With a scan tool, command the engine speed up to 1500 RPM, down to 500 RPM, up to 1500 RPM.
Exit the RPM control function.
Does the engine speed correspond, within 100 RPM, with each command?
Go to Diagnostic Aids
Go to Step 3

3
Is the engine RPM more than 100 RPM more than or less than desired RPM?
Go to Step 4
Go to Step 5

4
Inspect for the following conditions:

Vacuum leaks
A faulty positive crankcase ventilation (PCV) valve
Did you complete the repair?
Go to Step 6
--

5
Inspect for the following conditions:

Excessive deposits in the throttle body
A parasitic load on the engine, such as transmission problems
Did you complete the repair?
Go to Step 6
--

6
Use the scan tool in order to clear the DTCs.
Operate the vehicle within Failure Records conditions.
Does the DTC reset?
Go to Step 2
Go to Step 7

7
Does the scan tool indicated any DTCs set that you have not diagnosed?
Go to Diagnostic Trouble Code (DTC) List
System OK

 

liberty your assumin he has a scan tool that can go into the computer and raise and lower the RPMs not very many people have that

 

double posted

 

yours works assuming he has a scan tool that will control the car.... which not very many people do

 

Triple post... I was gonna guess DBW throttle body being messed up.

 

It's fixed!! Fortunately it was as simple as a new bolt. Turns out that the Evap purge valve(?) was unbolted so there was a HUGE vacuum leak. Thanks guys for all your help!


2001 Chevrolet Camaro 3.8 V6