Re: when in neutral or low rev occassionaly cuts out
It's your idle air valve located on the backside of your intake round with two large lines going to it make sure you check junkyards first for one because you'll faint when you hear the price at the parts counter.
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Is it possible the clutch pedal is interfering with the throttle? Start the engine in neutral and allow it to idle. Press only the clutch pedal down and see if this increase the engine speed. If it does speed up the engine and slows back down when you release the clutch then somehow this operation is where your fault lies. If it doesn't alter the idle speed, then rev your engine and release the throttle to see if it returns to idle immediately. If it is slow to return to idle then your throttle cable could be sticking. This means when you change gear lifting off the throttle has little effect and depressing the clutch to change gear causes the engine to race as the throttle is still partially open.
hello ive got a problem my golf 1.4 16v petrol year 2000when it reaches 2700 revs it cuts out and restarts like I basicly turned the ignition off and on again althought no other elictrical part of the car goes off stationary or driving it makes no differenceif im driveing along at 2700 revs just before it cuts out and drop a gear it lets me go past 2700 thus i can wind my way throught the gears past 3000 revs as soon as i slow down around 3000-2700 revs it cuts bk to doing the same on off on offthe radio-lights-windscreen wipers don't slow/shut off while this occurs and nor does anything elseoccasional when this random cutting out /restarting happens the oil light-pump stops working /light comes on and the rev counter stops working so i have to pull over and restart the car.its just passed a MOT with no faults and wonderfully for me the fault didn't happen that day ....ive changes plugs wires checked fuel pump-air pressure and i cant find anything pls could you give me some hints etc of what might be the issue
you may have a dirty fuel filter or the throttle plate may need cleaning.the throttle plate is the valve that moves in the intake when you move the gas pedal.if they get too dirty they cause a restriction in the intake and cause the car to stall.it also could be a tps sensor problem but this should put the check engine light on but not always.the breaking up of the motor when you rev it to 4000 rpm`s is the rev limiter in the computer that shuts down the firing of the plugs and injecotrs so you don`t cause damage to the motor when there is no load on it.
check pvc valve .crank engine remove pvc .engine going run rough few seconds take finger feel for vacuum.if you feel suction its working .feel no vacuum .replace pvc valve .and vacuum hose .going to it.if all is good .you have oil control rings problem and leaking valve seals and guide
This problem can be several things. When your engine is cold, your computer is in a "closed loop" and just pretty much keeps the engine running until warmed up. After reaching operation temperature, the computer starts reading all the sensors. If one sensor is not connected or is defective, you will experience performance problems. Most of the time this will turn on the check engine light, but not always. Second is the fuel pump. This too will cause erratic engine problems.