Pull the ECU code to see if it's o2 sensor:Ībout half of the ECU codes stored on the first & second generation EFI Toyotas don't show a constant blinking check engine light therefore you must pull the ECU codes to see if a fault is registered.Īll 1980-1995 and including 1995 EFI equipped vehicle allow you to find engine and related faults by pulling the ECU (computer) codes without the need for a handheld OBDII diagnosis scanner,the sites listed below have the fault codes needed to pull the codes and the instructions on how to do it: Does anyone know how to hook one of those smoke machines up to the manifold so I can check for leaks? I've seen it done thru the tail pipe for exaust leaks, but I think it can be done thru the manifold for other leaks (vacuum) as well. This is why I think it is a vacuum issue now. It only stalled as I was coming to a stop. Originally, that's where my problem began. I noticed this morning that the idle started to act up when I applied the brake to put it in gear. Sometimes it's real bad and other times it idels down low (like it going to stall) and back up again. I cant seem to find the damm notches on the crank pully. The only thing I haven't done is check the timing. Since the new TPS, it actually runs smoother now, but still stalls occasionaly. The throttle body was cleaned out last week when I installed the new TPS. I check all the connections and everything is good. These are serious issues and may indicate a clutch switch problem and it needs to be replaced as soon as possible.Click to expand.All the usuall things (cap, wires, rotor, (air filter one month ago)) were all replaced mid last year. If you engine does not start or it starts without the clutch pushed in, your car needs to be looked at as soon as possible. When the clutch is not pressed down, the switch is open and the circuit is not complete, thereby the vehicle cannot be started. When the clutch is pressed in, the sensor is closed by a mechanical contact so the circuit can be complete between the ignition key and the starter motor. This is a hazard to you and those around you so this should be taken care of right away. For example, as soon as you start the vehicle it could move in a forward motion without any warning. This can be dangerous because when you start your vehicle, you have potential to lose control of it if it slips into gear without you being ready. On the opposite side, if your vehicle starts without your clutch being pushed in, you have a bad clutch switch. If this happens, the vehicle will be inoperable until you contact a professional mechanic to have your clutch switch replaced. Even if the clutch is pressed all the way to the floor, the vehicle is in park, and your car still will not turn on, it could be a faulty clutch switch. One of the biggest signs your clutch switch has failed is the vehicle will not turn on when you have the key in the ignition, and try to start your vehicle. There are a few things to watch out for that will give you signs the switch needs to be replaced. Over time, the clutch switch may go bad because it is being used every day, and due to normal wear and tear. This safety device was installed to prevent the driver from losing control of the vehicle. The clutch switch is attached to the pedal linkage and is activated by the clutch pedal arm when the clutch is pushed down. The clutch switch is normally located underneath the dash, and prevents you from starting the vehicle to start while it is in gear.
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