Why is my TPS not working as it should?
Figure 6 shows a properly functioning TPS. Another common cause are dirty fuel injectors. If varnish deposits have built up in the tips of the injectors, they won’t spray as much fuel as they normally do, or will “dribble” fuel instead of spraying a fine mist.
Can a bad check engine light be a bad TPS?
The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling. This is often the first ever symptom of a bad TPS. Using a code reader, you should be able to confirm whether a faulty TPS is the culprit or a different component.
What causes a flat spot on a 009 distributor?
Rob Boardman gives a good discussion of the problems associated with the 009 distributor. The 009 distributor does often cause an acceleration flat spot, as it does not have the vacuum advance adjustment of the original distributor.
What are the symptoms of a bad throttle position sensor?
A faulty throttle position sensor sends incorrect information to the ECM resulting in various issues in the engine, its performance, and fuel economy. Below are common symptoms of a faulty TPS. In most of the cases, all of these symptoms will show together making it easier to detect the faulty component. 1) Car Jerks
What to look for when Dead Head the fuel pump?
Verify there is 18-20 of fuel pressure when you dead head the fuel pump. If low, verify there is good power and ground to the fuel pump and that the fuel filter is clear. Also, make sure that the MAP sensor vacuum port in the throttle body is not restricted. This would make the engine run lean under a load as well.
What’s the Dead Head pressure on a Vortec?
Dead head pressure may reach 100 psi. These vortec engines are well known for injector/poppet valve problems, so you may want to consider the upgraded injector assembly that eliminates the poppet valves. This assembly is readily available and actually cheaper than the stock setup. Please Log in or Create an account to join the conversation.
What are the symptoms of a bad TPS?
Below are common symptoms of a faulty TPS. In most of the cases, all of these symptoms will show together making it easier to detect the faulty component. Jerking or bucking of the vehicle is the most common symptom of a bad TPS.
The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling. This is often the first ever symptom of a bad TPS. Using a code reader, you should be able to confirm whether a faulty TPS is the culprit or a different component.