11-20-2009, 07:36 PM
(This post was last modified: 11-20-2009, 07:43 PM by bucketobolts.)
I'd also double check for a vacuum leak, especially under the upper manifold and around the EGR valve. Be sure the IAB and throttle plate are not coked up. The you may want to try to relearn the warm idle strategy. Target warm idle speed should be 650-700rpm with a stock engine.
1. Clear the EEC-IVââ¬â¢s idle memory by disconnecting the battery for 20+ minutes.
2. Disconnect the Idle air bypass solenoid
3. Reconnect battery
4. Start engine and set idle speed to desired RPM with stop screw on throttle body (900 rpm works great with E303 or larger cam)
5. Turn off engine and reconnect the air bypass solenoid*Optional ââ¬â set TPS to 0.90 - 0.95 volts (Do not exceed 1.0 volts MAKE SURE!) Use a digital volt meter!
6. Start engine and let it idle for 2 minutes with no accessories on.
7. Turn off engine for two minutes
8. Start engine again and run for 2 minutes with every accessory turned on.
9. Turn engine off again. Your computer should have now re-learned the new idle settings.
Also where is your ACT sensor mounted?
1. Clear the EEC-IVââ¬â¢s idle memory by disconnecting the battery for 20+ minutes.
2. Disconnect the Idle air bypass solenoid
3. Reconnect battery
4. Start engine and set idle speed to desired RPM with stop screw on throttle body (900 rpm works great with E303 or larger cam)
5. Turn off engine and reconnect the air bypass solenoid*Optional ââ¬â set TPS to 0.90 - 0.95 volts (Do not exceed 1.0 volts MAKE SURE!) Use a digital volt meter!
6. Start engine and let it idle for 2 minutes with no accessories on.
7. Turn off engine for two minutes
8. Start engine again and run for 2 minutes with every accessory turned on.
9. Turn engine off again. Your computer should have now re-learned the new idle settings.
Also where is your ACT sensor mounted?
'72 TBA...