Civic EG

Posted: **Wed Dec 21, 2011 3:06 am**

i have no ecu codes or check engine light on. I have damn near changed out everything i can think of except a new distributor cap. My car seems to idle so low after it warms up that its resting at the needle stopper. i cant figure out why my car idles low for the life of me. Is it possible that its a ground, injectors, bad distributor cap, bad ecu, main relay,pump, map sensor? Help me guys cuz this motor is p*ssing me off lol

Posted: **Wed Dec 21, 2011 4:55 am**

Well hows the radiator? Losing any coolant? A leaky head gasket will bog the idle down quite a bit as the plugs get soaked from coolant. And try cleaning the idle air control valve.

Posted: **Wed Dec 21, 2011 5:06 am**

My radiator is an aftermarket eBay one with a slim fan. I haven't lost any coolant. I also had cleaned out both the iacv as well as the fitv several times awhile ago. I burped my coolant also. I took my short ram intake off and the whole inside the intake manifold for the iacv had a lot of suction which I'm wondering of that's normal?

Posted: **Wed Dec 21, 2011 5:18 am**

Dose your idle bounce at all? Could be a vac leak. Have you tried adjusting the idle screw?

Posted: **Wed Dec 21, 2011 5:29 am**

Yea no idle bounce. Just a steady low idle after it warms up. I've also adjusted the idle screw and does nothing. I have also did the relearn procedure and still nothing.

Posted: **Wed Dec 21, 2011 5:34 am**

Im trying to remember if these cars have a tps. If so i would replace it. Sorry this is my first eg ive owned in like 3 years. Ive been playing with my ep. Does the motor want to stall at all? Like does it starve of fuel?

Posted: **Wed Dec 21, 2011 5:45 am**

Yes my motor is a d16z6 which was recently rebuilt and I replaced the tps with an after market blox tps then I got another stock Honda one that was used. So I tried that already. I'm thinking it's a vac leak somewhere which I can't find. Think it could possible be my dizzy cap since I replaced the dizzy itself and never the cap? Also my cat is gutted and I also noticed that one of the header bolts that connects to the head to the header is broken and that the header has no O ring gasket where the header and downpipe meet

Posted: **Wed Dec 21, 2011 6:30 am**

If the cap was bad the idle would be rough. The rotor could be burnt up that could cause weak spark

Posted: **Wed Dec 21, 2011 6:43 am**

Rotor and dizzy are new, but cap isn't

Posted: **Thu Dec 22, 2011 1:57 pm**

have you pulled the cap and looked at the points? Engine would run shitty with a bad cap, not just low idle.

Posted: **Fri Dec 23, 2011 10:39 am**

So I cleaned out my fitv and now I'm getting a code 3. What's a code 3 mean. I looked up the code and it says manifold absolute pressure? What's this mean? Map sensor?It's odd because I cleaned the hell out of the fast idle valve because I had a low idle. So after that my car was still idling low and I have no check engine light, but I thought to check my codes anyway and code 3 came up

Posted: **Fri Dec 23, 2011 10:42 am**

No I haven't pulled the cap either. I'm wondering if I had code 3 before I cleaned out the fitv. Also I reset the ecu by pulling the fuse in the engine for it and code 3 still appears. I still have no engine light

Posted: **Fri Dec 23, 2011 12:17 pm**

yup sounds like a bad map sensor. swap it out and give it ago :thumb:

Posted: **Fri Dec 23, 2011 9:37 pm**

yeap Map Snesor!!! replace and it should be a go!

:thumb: