Car will just turn over no spark, i replaced the distributor, ecm, battery, but can't find the main relay would that cause the problem 90 integra have no spark and fuel, and check engine light not on when turn key on II. here all things I check and change: change main relay, change ECU, fuel pump work good, all fuse are good, ground all check, when I turn key on II I hear the main relay click but no fuel pump and engine cranked but no spark. please tell me what going on with this problem, Please help.

The most likely issue I have encountered with that model integra is the distributor or the main relay. The relay rarely causes it to shut off, usually causes issues with starting so I would check for spark and fuel pulse at the injectors. If either of these is not present then the problem likely lies in the sensors inside the distributor and requires replacing it. If I can assist further, reach me at https://www.6ya.com/thericepatch

Did you check the timing belt timing? Engines need 3 things to start. Spark, fuel, compression.

jump timing loosen distributor and plus or minus turn and retighten

For spark plug problem,click the help links provided below :---Car has no spark?http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html
------------How to Replace Spark Plugs?http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-spark-plugs.html
-------------Car cranks, has spark but will not start?

http://howtobyme.blogspot.com/2011/12/car-crankshas-spark-but-will-not-start.html

------------------------
The spark plug firing order for car?http://schematicsdiagram.blogspot.com/2011/06/spark-plug-firing-order-for-car.html
----------How to gap spark plug ?http://technoanswers.blogspot.in/2012/02/how-to-gap-spark-plug-on-chevy-impala.html-----------Spark plug Replacing for?http://technoanswers.blogspot.in/2012/02/spark-plug-replacing-for-chevy-impala.html
-----------How to identify number one spark plug on the distributor cap?http://schematicsdiagram.blogspot.com/2011/12/how-to-identify-number-one-spark-plug.html
---------How does the spark plug wire go on the distributor cap?http://schematicsdiagram.blogspot.com/2011/12/how-does-spark-plug-wires-go-on.html
---------Spark plug Firing Order Diagram?http://schematicsdiagram.blogspot.com/2011/12/2006-suzuki-forenza-spark-plug-firing.html
-----------This will help.Thanks.

check your computer or the ignator or coil in the dizzy

Take out the main relay and check the solder joints.
Reheat the solder joints if you see any tiny cracks.
You can also buy rebuilt main relay from eBay.

If the main relay does not solve the problem, you will need to check the distributor. Open the distributor cap and the rotor and see inside and make sure there are no oils leaked from the bottom side of the distributor through oil seal. Replace the distributor with a rebuilt or new one. There are many distributors listed at eBay.

crazy,but I will ask,is the rotor button turning?Is the timing belt broken?Have you replaced the components in the distributor with all new parts?The pick up coils are bad to go out,and the modules,and the coils.

To put it simply it's either spark, fuel or compression. If the timing belt is okay (not broken or timing marks don't line up) and you have spark, you need to make sure you have clean gas and not water (from condensation) or air being sprayed out the injector nozzles. Try using quick start spray or even pouring some gas down the trottle body and see if it starts. If it does then check the relays, pump and lines. I've seen pin hole leaks in lines that caused symptoms similar to vapour lock. Check the
Main EFI relay (it's under the dash near the brake pedal) they usually stop working when the car is parked in the hot sun. Sometimes leaving the doors open, or pushing the car into the shade so it can cool down, will get the car to start again. I would get a distributor and a Main EFI relay from a junkyard. Because it's too expensive just swapping in new parts, and it's always a good idea to keep a spare distributor around as they are known to go bad on old Integra's.

How do you know it's getting fuel and spark? do you know if the fuel is good? and not watery?
are you getting any check engine light?

Hi. You may wanna try to change the ignition transformer. A good way to troubleshoot is to unplug the cable from the distributor cap end and hold the cable a half inch away from the chassis or the engine head cover and try to strart the engine. If you see a sparl coming from it from the cable, the ignition works. if not, change it. Hope this works for you.