i have a 2002 civic LX auto,cant find the main relay?car starts and runs,i can hear the fuel pump relay clicking and the tack goes up and drops with the click,then relay stops clicking(behind the glove box) and the tach goes to 0 still running but doesnt rev up without bucking a bit and boggs any ideas

the only relay i found under driverside dash was for the auto cruise

 

Under the hood by the Intake there are some more fuzes and relays

 

is this really the best this forum has] to offer!!wow back to blue oval for me
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so you cant find the main relay, even though you heard it clicking behind the glove box?

Yes, Its back behind the glove box, right where you heard it. you can release the glove box so it opens wider, then remove the panel thats to the right of the glove box and you'll see it.

 

your main relay shouldn't have anything to do with your idle. could be your iacv

 

I had the same problem with my 2002 Honda Civic EX. During the day, it would get hot and stall out while driving. Here is a pic of the relays with part numbers and where to buy them. Hope this helps anyone else with this problem.

 

air fuel problem, possible a vacuum leak

 

I have a 2004 Civic that is having the same problem you described. Can you tell me what you found was causing the problem?

I've looked everywhere until I found your post, I hope you have the answer!

 

i dont think its the relay.
u should hook up a scanner and look at crank sensor and cam sensor when this happens. i think its one of those.

plus there should be a code somehow.

 

Does the honda civic 2002 LX have a main relay? According to honda it doesn't what are your thoughts?