2.
Is air cleaner damaged or clogged with dirt?
YES
a.
Replace air cleaner and go to "Verification of Vehicle Repair" procedure.
NO
a.
Go to "Check Intake System for Air Leak" procedure.
Check air cleaner for dirt, blockage, or damage.
Is air cleaner damaged or clogged with dirt?
YES
Replace air cleaner and go to "Verification of Vehicle Repair" procedure.
NO
Go to "Check Intake System for Air Leak" procedure.
Check intake tube, breather hose and MAFS for any sources of air leaks.
Are there any cracks in intake tube, MAFS or breather hose and are all bands tight and collectly installed?
YES
Go to "Check Throttle Position Sensor" procedure.
NO
Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Disconnect TPS connector and measure resistance between terminals 1 and 4 of the TPS connector.
Specification : Approx. 1.6~ 2.4kΩ( with throttle valve fully closed) at 20°C(68°F)
With still TPS connector disconnected, measure resistance between terminals 1 and 3 of the TPS connector.
Operate the throttle valve slowly from the idle position to the full open position and check the resistance changes smoothly in proportion with the throttle valve opening angle.
Specification : Resistance changes smoothly in proportion with the throttle valve opening angle.
Is TPS normal?
YES
TPS is "OK".
Possibility of defective ECM.Temporarily test with a new ECM and check for proper operation.
If problem is corrected, replace ECM and go to "Verification of Vehicle Repair" procedure.
NO
Test with a new TPS and check for proper operation.If problem is corrected, replace it.
And go to "Verification of Vehicle Repair" procedure.
