Low, rough idle
#2
RE: Low, rough idle
What year and engine type.
What is the idle RPM when engine off.
How high the water get in the car.
How is the engine idle RPM when you shift from Park to Drive or Reverse, does it also drop (if auto trans).
What is the idle RPM when engine off.
How high the water get in the car.
How is the engine idle RPM when you shift from Park to Drive or Reverse, does it also drop (if auto trans).
#3
RE: Low, rough idle
What year and engine type. 2005 Base model 4 cyl
What is the idle RPM when engine off. Im gonna go with 0 , Alex. 800 ac off/ 500 ac on.
How high the water get in the car. 4"
How is the engine idle RPM when you shift from Park to Drive or Reverse, does it also drop (if auto trans). Barely, not enough to worry about stalling.
What is the idle RPM when engine off. Im gonna go with 0 , Alex. 800 ac off/ 500 ac on.
How high the water get in the car. 4"
How is the engine idle RPM when you shift from Park to Drive or Reverse, does it also drop (if auto trans). Barely, not enough to worry about stalling.
#5
RE: Low, rough idle
700-800 RPM idle when engine warm and in gear is OK.
The ECU may not be getting a signal that the AC has been turned on. When the AC compressor turns on the ECU will adjust the idle up to compensate for the load. The throttle is controlled by the ECU via a stepper motor.
If the problem started with the the flood, perhaps some of the wiring connectors that were underwater are still wet. Flooding of wiring can cause all kinds of strange problems.
The ECU may not be getting a signal that the AC has been turned on. When the AC compressor turns on the ECU will adjust the idle up to compensate for the load. The throttle is controlled by the ECU via a stepper motor.
If the problem started with the the flood, perhaps some of the wiring connectors that were underwater are still wet. Flooding of wiring can cause all kinds of strange problems.
Thread
Thread Starter
Forum
Replies
Last Post