The night before my 90 acura integra was running fine, but the next day i wont it just cranks. I have change the main relay and I am getting fuel and spark. But still wont fire do you guys have any idea wats wrong??? plz help?
Well i took the spark plugg off and plug it to the wire and i do see spark and i do smell gas in the cylinder and you might have a point about the gas maybe watery............ and i do here the fuel pump hummm when i turn the key on too acccc.
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Well, something is missing. Your engine needs fuel, ignition, and compression to run. You need to findout which of these systems is malfunctioning before anybody can tell you why your engine won't start.
If there is no spark, I would check the ignitor in the distributor first. There are other possible causes, but this isthe most common.
If there is no fuel, I would suspect a bad fuel pump. (you can check this by spraying a SMALL amount of starting fluid in the intake and see if the engine fires.
If there is no spark and no fuel, I would suspect a broken timing belt.
It sounds like a common problem with the fuel pump relay. I am surprised your mechanics didnt think of this first instead of selling your lots of other stuff...or maybe I am not surprised!
The original part is a burnt orange colored RZ-0067 Main Relay and is found underneath the steering column. The relay's dimensions are close to the top flap of a hard pack of cigarettes. The relay is secured by a 10mm bolt, and is easily accessed by removing the front panel above your shins. The said relay is frequently cited as the chief cause of not being able to start the car on a hot day. See http://www.honda-acura.net/forums/archive/index.php/t-85539.html, http://honda-tech.com/zerothread?id=1319817&postid=16772789 and http://autorepair.about.com/cs/troubleshooting/l/aa010301a.htm. It is also the least expensive (e.g. $35-50 for part) that a novice can do at home! The RZ-0067 relay appears to have been replaced by the RZ-0063. See http://g2ic.com/forums/showthread.php?t=27612. It is identical to the RZ-0067 except it is black. See http://188.8.131.52/CommerceGateway/picturesHonda%20J-Pegs%5C39400SH3003.jpg This is a very common reoccuring problem on Acura Integras as well as other Honda vehicles.
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.