RX-7 Three Rotor-- Identify This Part
#1
Old Booster
Thread Starter
RX-7 Three Rotor-- Identify This Part
Hey All
I have a parasitic drain I am trying to troubleshoot. Battery drains down in a week with key off and locked. At one point I had shut the engine off and there was a noise that sounded like an electric tire pump going crazy. Ignition was off. I couldn't see the part at that time but I could feel the vibration in a hose leading to the front of the intake. Later I traced it back and found what looks like some kind of solenoid under the intake. It has a wire plunged into it and a hose coming out the back side. Does anyone know what this is. Remember this is a three rotor.
I have a parasitic drain I am trying to troubleshoot. Battery drains down in a week with key off and locked. At one point I had shut the engine off and there was a noise that sounded like an electric tire pump going crazy. Ignition was off. I couldn't see the part at that time but I could feel the vibration in a hose leading to the front of the intake. Later I traced it back and found what looks like some kind of solenoid under the intake. It has a wire plunged into it and a hose coming out the back side. Does anyone know what this is. Remember this is a three rotor.
#3
Rotary Motoring
iTrader: (9)
That component looks like it may be an external idle air control valve.
If so, it should have a hose leading to it from in front of the throttlebody and a hose leading to it from after the throttle body on the intake.
This would make sense on why the hose would vibrate at idle as well (solenoid pulses to regulate airflow/idle).
If so, it should have a hose leading to it from in front of the throttlebody and a hose leading to it from after the throttle body on the intake.
This would make sense on why the hose would vibrate at idle as well (solenoid pulses to regulate airflow/idle).
#4
Old Booster
Thread Starter
I didn't do a load test on the battery. Don't know how to do that. I did disconnect the battery for a week. That is how long it usually takes for the battery to drain till dead. When I reconnected it and hooked it up to the charger, it read full, so it hadn't lost any power while not hooked up to the car.
Idle solenoid
Wondering is that is a stock FD3s part or if that needs to be sourced from a Cosmos.
Idle solenoid
Wondering is that is a stock FD3s part or if that needs to be sourced from a Cosmos.
#5
Old Booster
Thread Starter
I looked at some shop manuals. A part that looks to be in the same location is call a double throttle air control valve. Could that be the bugger? If it is, I don't know if that is a FD3S part. Since it is hooked up to a three rotor intake, It could be a cosmos part. Any thoughts guys? Thanks for the help.
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#8
Original Gangster/Rotary!
iTrader: (213)
Definitely an aftermarket part and probably a red herring.
What ecu are you running? It's pretty common for modified FDs to have battery drains, many owners use a Battery Tender while the car is in the garage so you won't have any issues.
What ecu are you running? It's pretty common for modified FDs to have battery drains, many owners use a Battery Tender while the car is in the garage so you won't have any issues.
#10
Old Booster
Thread Starter
Thanks for the advice SGT Blue. Thats a pretty straight forward way to determine the battery drain. To Goodfella FD3S --- my engine management system is an AEM Infinity 6.
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