ok i got a 02 civic non-vtec.
and yesterday my sister was driving and as she was speeding up the car started to jerk and pretty much misfiring and the battery light came on so didnt the check engine light. well thats what she says

today i tried to connect a scan tool to it and it cant find a connection???
weird!

and when you start the car it misfires like crazy the shifter locks so you cant shift out of park! and pretty much its a mess!

so today i figured it was a ground somewhere.
i cleaned the terminal from the battery and the connections on the body and the engine!

after that the car runs much better it doesnt seem to misfire or anything and the shifter doesnt lock!
although!
every about 3-5 seconds it like bogs out for a second! like the rpms drop and the check engine light comes on and so doesnt the battery.
all in that same second then it goes back to normal idling and the check engine light is off......
also during that second it sounds like the computer clicks! or maybe its the shifter??? idk their both relatively in the same place!

any ideas???
thanks!

 

can you post a video or sound up

 

Start with the basics:
Clean your IACV. (Idle Air Control Valve)


Make sure everything on your exhaust, near the O2 sensors, is tight. (with good gaskets)
Test the battery and alternator to make sure they're operating within normal limits.
You already checked the grounds.

And, please, search next time. Idle/idling issues have been well covered before. The most common issue is a dirty, or clogged IACV. If you need help searching, click This Link. There's a how-to at the bottom of the page.

 

http://www.youtube.com/watch?v=cKs76gRg8GY
here it is?
the battery was low when i took this
right now its charged and the battery light is off. it doesnt come on!
so.....?

 

i tried no one had a similar problem most of them were internal engine problems... idk maybe i didnt search far enough sorry dude!!

and just if anyones wondering its all stock theres not a single aftermarket part on it!!!

 

i investigated a little and found out that the clicking noise seems to be coming from a brown relay.
located behind the glove compartment. there are three relays blue brown and black....
anyone know what these relays are???
tomorrow ill try taking one out of my other civic see if it fixes anything?
anyone have any other ideas why there seems to be that loss of power for that short amount of time???
anyone???????

 

Sorry if I'm off topic but...Wait....you said your car is an 02? 01-02 models never came with those guages (cluster), was the car purchased used?

 

well it was made 09/02 so it depends what way you look at it!
technically 03!

 

i believe they are fuel pump relay and ecm relay and power relay they should say on the side of them

 

honestly thats pretty weird but i would start with cleaning the iacv and then make sure all the air in the cooling system is bled out but bout the clicking that could be it tell us what happens

 

so why doesnt the scanner connect to the pcm... thats probobly the weirdest... because im pretty sure ive connected it before and i tried all my other cars and it works so is there a chance my computer broke??
just wondering what would happen if the pcm broke or something?
the car shouldnt start right?? im hoping its just the relay if not i found a pcm for 35 bucks so its not too much!!

it was way better to hear that, then when i have to get parts for my S500!! haha

 

Air in the cooling system will cause it to overheat, not idle funny. And it would be more of a gurgling/bubbling sound than a clicking one. (someone knowledgeable correct me if I'm wrong here.)


Where exactly are you trying to plug it in?

 

the obdII slot.... is there anything else i can plug it into????

 

People try some awfully questionable things, so I thought I'd ask.

 

If your ECU can't connect to your OBD2 scanner.... bad ecu, happened on my brother 01, batt light, erratic idle, wierd power transistions.


ebay'd a new ecu, took it to honda, for reprogram, all good now

 

lol well you can try that cuz 3 of mine have done it

 

well i found one for 35 with those relays so ill probly get that... its used out of a slavage yard so would i have to reprogram that??? or

 

so would i have to reprogram a used ECU??? anyone????

 

Yes

 

anyway i can do it myself.. i dont wanna tow my car over to the dealership!!
i got the new ecu in...
car doesnt start.. just cranks... but atleast my scanner connects to it

 

The ECU and the immoblizer have to be matched so it will work.

 

immoblizer??
im not really familiar with that??? what is it?

 

the immoblizer is the thing in your key that lets the car start. if they are not matched it just cranks and will not start.

 

To add to what's already been said. (though it is correct)

 

oh sweet thanks guys i greatly appreciate your help!!!
im guessing next time i buy a computer its cheaper to just get the immobilizer with it huh?
i mean its $101 bucks to reprogram the computer at the dealer.
and if the computer is 35 im sure the immobilizer will be like 20...??
so i could have saved like 80 bucks!
or is there another safety feature involve in this antitheft system??