I purchased a 91 NSX with 175,000km's a couple months ago and I've been having a problem with it. Sometimes the car starts for a second and then immediately dies. It will start and die for 3 or 4 tries and then finally start. A couple times recently the car will just die as I'm driving. I've been reading and noticed Main Relay and Fuel pump resistor mentioned quite a bit so I replaced them.(but no change) I also removed starter switch and cleaned it. One thing I noticed with the starter switch is several electrical cables are spliced/joined to it. Is this normal? Car has an alarm that has ignition cutoff as well. Anyone have any other ideas what could be causing the car to die and have problems starting? Thanks in advance
Problem Starting/ Car dying
- Thread starter drake21
- Start date
Try checking the ground connections in the engine bay
i've heard that the car starting & immediately dying can be caused by a bad/dirty ignition switch
- Joined
- 13 December 2011
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- 1,934
Replace the ignition switch assembly. I had an alarm system spliced into my Nsx, gave me all kinds of random starting issues until i figured out out the poor connection where the alarm installer spliced too many wires to the hot side of the harness. I disconnected all of it, and replaced the ignition switch, walaa perfect starting every time.
I tried disconnecting the existing ignition switch(with all wires spliced into it) and plug the new one in directly but the car will not start. I thought doing this would just bypass the alarm cut off and give me a clean start but no luck. Do I have to trace all the wires spliced into the ignition switch and see where they go?
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