I have change out the EIACV and the ECTS when the code came up but stills jump up and down.
Jun 4, 2010 at 7:15 AM
1992 Honda Prelude Rpms jumps from 1000 to 1500
1992 HONDA PRELUDE
H23A1 PRELUDE
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When rpm surges, it is due to the idling speed too high.
1. Check for vacumn leakages. PCV, brake booster , other vacumn hoses.
2. Check the Fast Idle Thermo Valve. Ensure the coolant hoses are not clogged.
3. Check the idle speed adjustment screw.
1. Check for vacumn leakages. PCV, brake booster , other vacumn hoses.
2. Check the Fast Idle Thermo Valve. Ensure the coolant hoses are not clogged.
3. Check the idle speed adjustment screw.
Jun 6, 2010 at 5:22 AM
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