I have a 1993 honda civic that i can crank forever and eventually get it to start up. Once started, it idles about 2500 rpm's then just shuts off. I can start the process again, cranks forever starts up then same results. I have changed many components. Fuel pump does come on. Any suggestions? Could it possibly be a bad ignition switch?
Try this first, and lets see what happens. Turn key to on, but not start, then off. do that about four or five times, then try to start. See if it starts, runs, then dies. Let me know. Have you had fuel pressure tested at all? If it doesn't start and run for a short while at least, take air intake hose off at throttle body intake, open throttle and spray a good shot of WD-40 into throttle body, then try to start. If it starts, you have a fuel delivery problem, maybe fuel pump or plugged filter would be first to check. Just because you hear the pump, doesn't necessarily mean it's getting proper pressure to run. Let me know what happens when you try this, and we'll go from there.
SOURCE: 93 honda accord ex died while driving,ran again
Check for fuel, sound's like not getting fuel.
SOURCE: 1995 honda civic d15b7 cranks but wont start. new
Are you sure you have correct timing? its definetly a fule problem, if timing is good then turn your key to the on position and try to listin for the fule pump to prime. While the key is in on position go to fuel rail, there is a valve on fule rail called sharader valve. Get a small screw driver and press valve in to check if car has fule pressure. if pressure is present then it is incorrect timing or possible bad cam sensor.
SOURCE: 1991 honda civic wont start...
I had the exact same problem - the solution is to replace the main relay (or just run a soldering iron over it's contacts). I have a '91 Honda Civic Hatchback and it now runs beautifully after I retouched the solder on the circuit board of that relay.
http://www.marklamond.co.uk/tech-honda/pgm-fi/main-relay/main-relay.htm
http://www.askmehelpdesk.com/cars-trucks/91-honda-civic-main-relay-11244-2.html
SOURCE: Changed timing belt on 95 honda civic
check your oil make sure the crank seal is ok that u didnt spill ur oil and blow it up. then check the timing belt - you may not have had the tension tight enough on the timing belt and it may have skipped a bit causing it to not fire. i think thats the most likely.
SOURCE: 1993 honda accord won't start sometimes
Its not your fuel pump! Its the cracks on the soldering inside the main relay.
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