My '92 Integra cranks but does not start. Events: Many months ago, car started to have starting problems in hot weather. In the morning or evening, the car would start without problems. In the hot weather, the check engine light would come on and I could not start the car, however it would crank but no start. I had to wait for a few minutes until I heard a sound click, then the engine light would come off, then I could start the car right away. Eventually, some months ago, this problem would occur all the type, whether it was day or night, hot or cool. I had to wait 5 minutes until the engine light came off, then I could start. However, if I drove the car around for a little while and turned off the car, then tried to turn the key to the on position, the engine light would go off right away and I could start right away. At this point, I wanted to get my car fixed. I took it to a shop to get it fixed. They said I needed to replaced the main relay, which they did. But it didn't solve the problem. They then told me the ECU was bad and I had to pay such and such but I declined, since it was too expensive. I talked to the technician and he said it was the ECU because he swapped in a junkyard ECU into my car and the problem wasn't there. He said he would sell it to me if I wanted but there was no guarantees; anyway, I came by later to try it out, and for sure the car started right away. However, the engine light stayed on forever and the S3 gear was blinking. I wasn't comfortable with it because it looked like an ECU for a different car, yet a similar one so it worked, but I was determined to get mine rebuilt for a cheap price. I sent my ECU in and got it rebuilt but when I got it back, my problem got worse. I now have to wait 20 minutes before the engine light comes off and for me to start the car. I would think that what has happened could narrow down to what my problem was, but I don't know much about cars to figure it out. It seems like my car is priming something and it takes a while to do so, maybe the fuel pressure before it allows me to start. However, I don't think my actual car parts have a problem since I could start it right away with another ECU. And since my ECU is rebuilt I dont think it's my ECU. I'm guessing it's a bad sensor or something. Any ideas? Thanks.

I have this problem on a regular basis with my 91.

it happens in hot weather, and sometimes after having to start and stop the car several times quickly(like going ot different stores over and over) again, in warmer weather, like 25 C+.

my problem though.

i start the car, it turns over and within the second it started it revs back down and cuts out.

then, when i put the keys back in, and to the second position just before cranking, my lights are on, and i get the s3 blinking, (which indicates a transmission malfunction, DO NOT START YOUR CAR OR DRIVE IT WHEN THIS LIGHT BLINKS, this is a transmission problem, but it is electronic, and runs your tranny really hard)

i would take the keys out, go read the paper for a few minutes or something, come back, put the keys in, and as long as that s3 light isnt blinking, the car starts fine.

the issue relating to gas would make sense, because if the engine doesnt get enough fuel it, well, shuts off. i have had injector issues before,(while applying gas nothing happens for a second) so i started using fuel injector cleaner every 4th or so fill-up.i have seen some better results, in driving as well.

try this, along with hitting your gas tank. BUT, hit your tank at your discretion, you dont want to accidentally cause damage, like maybe shake some electronics loose, which would cause even more problems

I had the same problem just the other day with my 92 integra, i just got to wrk and when i parked the car, i turned it off, i found a closer parking space and tried to start but it wouldnt i tried for almost 10 minz, it cranked and everything but wouldnt start. i took auto classes in high school and my teacher said that the fuel pump on older cars tend to stall, so with a small stick hit the gas tank from the bottom and that will get it going again and try starting it. to my luck it worked and it started perfectly. im not too sure about the check engine light, it hadnt occured on my integra.
                                                                                                 hope this helps

Did you check your main relay is located below the driver side dash defective if it will cut your gas alimentation trials that ,,,,give me the new

Also forgot to say, it could be vapor lock, now im not exactly too clear on how this happens, but its basically engine gets too much air, not enough fuel, so it might tie in with the fuel injection