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Lingenfelter C6 Corvette Throttle Learn Manual de usuario

Busca en linea o descarga Manual de usuario para Para El Coche Lingenfelter C6 Corvette Throttle Learn. Lingenfelter C6 Corvette Throttle Learn User Manual Manual de usuario

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2008 Chevrolet Corvette
|
Corvette (VIN Y) Service Manual
| Document ID: 1906748
Throttle Learn
Description
The engine control module (ECM) learns the airflow through the throttle body to ensure the correct
idle. The learned airflow values are stored within the ECM. These values are learned to adjust for
production variation and will continuously learn during the life of the vehicle to compensate for
reduced airflow due to coking. Anytime the throttle body airflow rate changes, for example due to
cleaning or replacing, the values must be relearned.
A vehicle that had a heavily coked throttle body that has been cleaned or replaced may take
several drive cycles to learn out the coking. To accelerate the process, the scan tool has the ability
to reset all learned values back to zero. A new ECM will also have values set to zero.
The idle may be unstable or a DTC may set if the learned values do not match the actual airflow.
Conditions for Running the Throttle Learn Procedure
With Scan Tool - Reset Procedure
Without Scan Tool - Learn Procedure
Throttle Learn
With Scan Tool - Reset Procedure
1. Ignition ON, engine OFF, with a scan tool, perform the Idle Learn Reset in Module Setup.
2. Start the engine, monitor the TB Idle Airflow Compensation parameter. The TB Idle Airflow
Compensation value should equal 0 percent and the engine should be idling at a normal idle
• DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0116, P0117, P0118, P0120,
P0122, P0123, P0128, P0171, P0172, P0174, P0175, P0201, P0202, P0203, P0204, P0205,
P0206, P0220, P0222, P0223, P0300, P0351, P0352, P0353, P0496, P0601, P0604, P0606,
P060D, P0641, P0651, P1516, P2101, P2119, P2120, P2122, P2123, P2125, P2127, P2128,
P2135, P2138, or P2176 are not set.
• Ignition ON, engine OFF.
• The vehicle speed sensor (VSS) is 0 km/h (0 mph).
• DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0116, P0117, P0118, P0120,
P0122, P0123, P0128, P0171, P0172, P0174, P0175, P0201, P0202, P0203, P0204, P0205,
P0206, P0220, P0222, P0223, P0300, P0351, P0352, P0353, P0496, P0601, P0604, P0606,
P060D, P0641, P0651, P1516, P2101, P2119, P2120, P2122, P2123, P2125, P2127, P2128,
P2135, P2138, or P2176 are not set.
• The engine speed is between 450-4,000 RPM.
• The manifold absolute pressure (MAP) is greater than 5 kPa.
• The mass air flow (MAF) is greater than 2 g/s.
• The ignition 1 voltage is greater than 10 volts.
© 2008 General Motors Corporation. All rights reserved.
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Document ID: 1906748
4/21/2008
http://gsi.xw.gm.com/si/showDoc.do?docSyskey=1906748&pubCellSyskey=161321&pub
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Indice de contenidos

Pagina 1 - Throttle Learn

2008 Chevrolet Corvette | Corvette (VIN Y) Service Manual | Document ID: 1906748 Throttle Learn Description The engine control module (ECM) learns th

Pagina 2

speed. 3. Clear the DTCs and return to the diagnostic that referred you here. Without Scan Tool - Learn Procedure Important: Do NOT perform this pro

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