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Old 06-12-2010, 09:44 AM   #1
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Exclamation new comer to jdm

i just bought a 1985 civic crx 5 speed about a week ago. before i bought it, it looked like it ran n drove good for a 25yr old crx. i put it on the road yesterday when i went to drive it for the first time it being one the road, " the idol is being stubborn it holds steady at about 850rpms sometimes, when i go to try to hold the gas peddle at any rpm it doesn't hold n the rpms drops." i thought it would have be the fuel filter but i changed it n i found out i was wrong, i cleaned the carburetor its getting gas fine, i dont know what to do next besides map sensor i want to try to diagnose this before i spend 250 on a map sensor im just trying to figure out how i can get this beast running strong n spend the least amount of money i can so i can save money up for a swap. any lil bit of information helps n will be appreciated, n im willing to learn.

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Old 06-12-2010, 03:54 PM   #2
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If you have a carb, you won't have a MAP sensor (that was only for the fuel injected Si models). The carb base gasket on these engines typically develops cracks or you could have a cracked vacuum hose.

There are two fuel filters- one up by the carb and one under the car just in front of the tank.

You can get lots of info on 84-87 civics and crxs at:
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