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Hi, my name is ***** ***** is usually caused by a bad coolant temp sensor, or an intake air sensor, have you monitored both of these on a scanner, when its hard starting?
Hello. Different expert here; please allow me to assist. If the starter is continuing to run with the ignition in the 'ON' position, it is highly likely that you have a faulty ignition switch (the electrical pert, not the key part). I would consider replacement of the ignition electrical switch (that is what the key turns); I do not think you have a key or key cylinder issue; over time, the contacts in the ignition switch can wear out, or lose tension which would allow a cross circuit, and the starter running is a cross circuit when the key is on.
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Absolutely. If the computer is not receiving the Key On voltage signal, you may not be powering up the unit properly, or it is not powering up the fuel pump relay. The ignition switch would cause this, yes.
Very good. Thank you.
That is rather interesting. This is reaching a bit, but, let;s look under the hood for the starter relay. Have someone crank the vehicle, and when the starter comntinues to run, pull the starter relay out of the panel, then quickly refit it. If the starter motor re-engages, you have a bigger problem than just an ignition switch.
Do this: When the starter motor is stuck running, tap the starter relay with a small mallet. Dont whack it, just tap it.
Can you do an active test on the intake air temperature sensor?
Yes. Defective sensors are always possible. We need to make sure that the values that the IAT sensor is accurate
That is certainly good news! Poor IAT connection....That will certainly do this. Glad you found it. Happy to hear that it is running OK!
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