【Fault description】
    Variable speed selector rod into the D stalls, the engine speed that is a sharp decline, and sometimes the engine also flameout.
    Began to think that the transmission oil is not good, so replace the transmission oil. But the replacement of oil did not play any role, the fault symptoms and exactly the same.
    【Inspection process】
    First of all, it must be clarified that the engine is not operating because of the transmission or the engine itself. In the D stalls, 2 stalls and L stalls engine running is not adjusted, R stalls no fault. So that basically can be negated because of automatic transmission problems lead to engine operation is not adjusted, because the automatic transmission problem caused by the sharp decline in the engine speed and even turn off the torque converter lock clutch must be concluded, if the lock clutch, regardless of forward, Or back, should have a fault phenomenon, so the problem in the engine.
    Open the engine compartment cover and, in the idle state, observe how the selector lever is placed in the D and R positions. When the speed selector lever is placed in the D range, the engine generates a great vibration after the shift, and the flame is turned off after a few seconds. Start the engine again, the speed of a little step on the accelerator pedal, the engine did not turn off.
    The engine is turned off due to vibration. Stepping on the accelerator pedal does not occur stall This matter shows that there is no wiring disconnection and so on. After repeated several times after the flame, the reasons for the flame also found, because the air duct. The engine uses an air-conditioned air flow meter, an L-Jetronic type of electronically controlled fuel injection system.
    The air duct, located between the air flow gauge and the throttle chamber, is corrugated and can be continuously retracted with the change in the intake air of the engine. After many years of use, it is repeated and repeated.
    Because the speed selector lever into the forward gear, corrugated air duct forward stretch, crack expansion, the air without air flow meter that is into the cylinder, mixed air-fuel ratio is too thin, so the engine flameout. Stepping on the accelerator pedal is not respite because of this time by the air flow meter into the cylinder of the absolute amount of air, the catheter into the cylinder into the air the amount of air is relatively reduced. The speed selector lever placed in the R stalls, the bellows tends to shrink, the crack was blocked, of course, will not produce a flame.