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Car Forum / Acura Cars / September 2007Starts then quits then Starts??
I have a 90 Acura Integra. Most of the time when I go to start the enigines fires off for less than a second then quits. The second start try usually works and I have no issues until I try to restart the car again. I have changed the main fuel pump relay, installed a new starter, and a new fuel pump has been installed in the last six months. Any ideas? > I have a 90 Acura Integra. Most of the time when I go to start the > enigines fires off for less than a second then quits. The second start > try usually works and I have no issues until I try to restart the car > again. I have changed the main fuel pump relay, installed a new > starter, and a new fuel pump has been installed in the last six > months. Any ideas? Ignition switch? What you describe is usually the Main Relay, which you say you replaced. Was the replacement a new one or one from a wreck?  SignatureTegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ >> I have a 90 Acura Integra. Most of the time when I go to start the >> enigines fires off for less than a second then quits. The second start [quoted text clipped - 7 lines] > What you describe is usually the Main Relay, which you say you replaced. > Was the replacement a new one or one from a wreck? it would not surprise me to find a new relay having bad solder joints. SignatureJim Yanik jyanik at kua.net >>> I have a 90 Acura Integra. Most of the time when I go to start the >>> enigines fires off for less than a second then quits. The second [quoted text clipped - 9 lines] > > it would not surprise me to find a new relay having bad solder joints. I doubt that. Honda is not in the habit of allowing defective goods into its parts stream. Main Relays go bad through heat cycling and vibration. SignatureTegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ >>>> I have a 90 Acura Integra. Most of the time when I go to start the >>>> enigines fires off for less than a second then quits. The second [quoted text clipped - 14 lines] > > Main Relays go bad through heat cycling and vibration. solder can crystallize over time.If a relay has been sitting in stock for a long time,it's solder joints could be crystallized,ready to crack under stress or thermal cycling.(tin migrates,grows whiskers,too.) SignatureJim Yanik jyanik at kua.net > >>> "BenN...@gmail.com" <BenN...@gmail.com> wrote in > >>>news:1189162952.653032.327450@r34g2000hsd.googlegroups.com: [quoted text clipped - 26 lines] > at > kua.net Is there a way to test the ignition switch? > Is there a way to test the ignition switch? If you can turn the switch ever so slowly and find a "sweet spot" where problems occcur, then the switch may be bad. See here for more details: http://www.tegger.com/hondafaq/ignition_switch/index.html SignatureTegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ >> >>> "BenN...@gmail.com" <BenN...@gmail.com> wrote in >> >>>news:1189162952.653032.327450@r34g2000hsd.googlegroups.com: [quoted text clipped - 29 lines] > > Is there a way to test the ignition switch? put a voltmeter on the wire from the "operate" position that supplies 12 Volts to the engine circuits,and monitor it while you crank,start and when the motor dies.If you lose 12V after cranking and releasing the key to the run position,then the switch is bad. SignatureJim Yanik jyanik at kua.net > solder can crystallize over time.If a relay has been sitting in stock > for a long time,it's solder joints could be crystallized,ready to > crack under stress or thermal cycling. Didn't know that. > (tin migrates,grows > whiskers,too.) There's a thread (ha ha) in sci.materials on just that. SignatureTegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ > "BenN...@gmail.com" <BenN...@gmail.com> wrote innews:1189162952.653032.327450@r34g2000hsd.googlegroups.com: > [quoted text clipped - 14 lines] > > The Unofficial Honda/Acura FAQwww.tegger.com/hondafaq/ I have not looked at that. Great idea. The Main Relay was new. Before I changed the main relay the car would not fire at all. It is firing now, but then cuts off. I have a RPM spike now, when before the relay I had nothing. I think the ignition switch is a great recommendation.
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