i know its holiday but please someone help me!!!!
i know its holiday but please someone help me!!!!
ok first off i drive a 02 civic EX coupe. its a 5 speed with 71000 miles. last night those of you that live in te notheast know about the rain that was here. it wasnt too bad. but i was goin along fine....down the highway and all. got off the highway and went to take a corner, stepped on the clutch and the car stalls. first time that has ever happened in this car to me. ok i pull it over and try to restart it. its still rolling, so i try and start it. cranks and cranks and nuthin. so while still rolling i pop start it. that gets it going again but with limited power( kinda sluggish) ok so i getto where im going and i stop and the car almost dies on me after i stop. after a few seconds it does finally die. i try to restart it and i have to put my foot on the gas like a carberauted car to get it going. ok so i think it just sucked up a little water and it needs to dry out. well this morning o go to get into it and drive it to my familys for the holiday and same **** happens again! it doesnt wanna start without the foot, and it dies at every stop sign. there inst a check engine light on, and when your on the gas it reacts just fine. but it wont idle. also i un hooked the battery to see if maybe it would clear the ECU out if there was a code. i did this and it didnt fix the problem. now i have no tunes cause i dont know the code to turn the radio back on 
someone please help!!!!!
someone please help!!!!! 
Joined: Sep 2002
Posts: 51,241
Likes: 20
From: NV
Rep Power: 811 
If your car is having trouble keeping idle 700 +/- 50rpms , then you need to take apart the air intake system and clean the throttle body and IAC valve.
1. remove air intake housing or aftermarket intake pipe.
2. remove throttle body. this is the thing with all the hose attached to it. most of the vacuum lines pull out, the ones held with clamps that connect to the IAC valve are coolant hoses. Make sure the car is cold and the radiator cap is removed before disconnecting these.
then pull the throttle lever open and disconnect the throttle and cruise cables by sliding the pin out through the hole. then remove the 4 bolts (red highlight) holding the throttle body on the intake manifold.
remove thr throttle body and clean all the carbon off using a throttle body/carb spray cleaner. metal polish makes it shiny.
remove the three screws holding the IACV to the throttle body and take it off. there are gaskets between the icav and tb but also between the tb and intake manifold. you can get new ones from honda (recommended) or reuse the old ones. spray carb cleaner all inside the valve openings and use q-tips if necessary to remove all carbon. this may take a while and require alot of spraying. it should look like this. If possible, let the piece dry overnight. Otherwise use a hair dryer to remove most of the liquid residue and reinstall in a few hours.
Put the IACV back onto the throttle body and reinstall on the car. be sure to tighten the bolts to 20 ft/lbs and reconnect all the coolant, vacuum, and sensor lines along with the throttle cables. reinstall the air intake.
IDLE LEARN
After installation of TB is complete, start the car and drive it until the engine is at full operating temperature. Idle may be rough or erratic at this point.
Park the car, turn off the engine, and pop the hood. Locate the fuse box and lift up the top cover. Using the supplied fuse puller, remove the FI ECU fuse for at least 10 seconds. This will reset the computer without erasing radio presets.
Replace the fuse and close the box. Make sure that all electronics and accessories are in the off position (fan, a/c, radio, lights, etc). Start the car and let it idle for 10 minutes with the hood closed. Do not press on the gas or turn on any accessories during this time.
After 10 minutes, turn off the car. The idle speed should now be set. Start the car and go drive like you normally would so the PCM can relearn the fuel maps. Idle should now be smooth.
1. remove air intake housing or aftermarket intake pipe.
2. remove throttle body. this is the thing with all the hose attached to it. most of the vacuum lines pull out, the ones held with clamps that connect to the IAC valve are coolant hoses. Make sure the car is cold and the radiator cap is removed before disconnecting these.
then pull the throttle lever open and disconnect the throttle and cruise cables by sliding the pin out through the hole. then remove the 4 bolts (red highlight) holding the throttle body on the intake manifold.
remove thr throttle body and clean all the carbon off using a throttle body/carb spray cleaner. metal polish makes it shiny.
remove the three screws holding the IACV to the throttle body and take it off. there are gaskets between the icav and tb but also between the tb and intake manifold. you can get new ones from honda (recommended) or reuse the old ones. spray carb cleaner all inside the valve openings and use q-tips if necessary to remove all carbon. this may take a while and require alot of spraying. it should look like this. If possible, let the piece dry overnight. Otherwise use a hair dryer to remove most of the liquid residue and reinstall in a few hours.
Put the IACV back onto the throttle body and reinstall on the car. be sure to tighten the bolts to 20 ft/lbs and reconnect all the coolant, vacuum, and sensor lines along with the throttle cables. reinstall the air intake.
IDLE LEARN
After installation of TB is complete, start the car and drive it until the engine is at full operating temperature. Idle may be rough or erratic at this point.
Park the car, turn off the engine, and pop the hood. Locate the fuse box and lift up the top cover. Using the supplied fuse puller, remove the FI ECU fuse for at least 10 seconds. This will reset the computer without erasing radio presets.
Replace the fuse and close the box. Make sure that all electronics and accessories are in the off position (fan, a/c, radio, lights, etc). Start the car and let it idle for 10 minutes with the hood closed. Do not press on the gas or turn on any accessories during this time.
After 10 minutes, turn off the car. The idle speed should now be set. Start the car and go drive like you normally would so the PCM can relearn the fuel maps. Idle should now be smooth.
ok i fixed it!
now after a full 24 hours(time wise) the check engine light finally comes on. but not till i get home so theres some good news here. i have a scanner so i was able to check the code. it was a P0401. that tells me that the EGR system was inadequete flow or stuck open. they say to take the valve off and clean it out. well upon doing this i found a piece of aluminum wedged in the valve holding it open. the piece wasnt no bigger half the size of a dime. i dont know where it came from or how it got there but im leaning towards a piece of casting. anyway i put it back together and its like new. no problems.
oh and BTW im takin a trip to the dealer today cause i still cant find the radio code
now after a full 24 hours(time wise) the check engine light finally comes on. but not till i get home so theres some good news here. i have a scanner so i was able to check the code. it was a P0401. that tells me that the EGR system was inadequete flow or stuck open. they say to take the valve off and clean it out. well upon doing this i found a piece of aluminum wedged in the valve holding it open. the piece wasnt no bigger half the size of a dime. i dont know where it came from or how it got there but im leaning towards a piece of casting. anyway i put it back together and its like new. no problems.
oh and BTW im takin a trip to the dealer today cause i still cant find the radio code
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