ECU/Throttle Body Problems
Thread Starter
Registered!!
Joined: May 2019
Posts: 1
Likes: 0
Rep Power: 0 
ECU/Throttle Body Problems
Well I sort of knew this already, and really it's stupid of Honda to do. My system almost always sounds bad because voltage is BELOW 12V! Unacceptable, and I'm surprised everything is able to run like this. I know other cars without this problem, so maybe our alternators are extremely weak and can't stay at full power all the time.
When I took my car to the dealer for a system check, they said my amps were drawing straight from the battery. I have an optima yellow now, so it isn't as much of a problem. Still the stereo and amps are mostly running off 12V.
When I took my car to the dealer for a system check, they said my amps were drawing straight from the battery. I have an optima yellow now, so it isn't as much of a problem. Still the stereo and amps are mostly running off 12V.
I'm so desperately trying to find out how to exactly reset ecu we have 04 civic so changed the throttle body getting code po507 we changed the valve and still having problem so we unplugged the fuse and still can't figure out what to do can you help you seem so knowledgeable please please ... Thank you
Dr Krieger of Modification
Joined: Jul 2010
Posts: 3,407
Likes: 84
From: canada
Rep Power: 228 
Re: ECU/Throttle Body Problems
You need an OBD2 engine scanner to reset the ecu.
-you can go to a mechanic or dealor
-buy one from a parts store
-buy one online
Make sure you used a new OEM Honda IACV.
-you can go to a mechanic or dealor
-buy one from a parts store
-buy one online
Make sure you used a new OEM Honda IACV.
OF top 99.5% creator (Formerly of the Puffinblunts variety)
Joined: May 2012
Posts: 3,634
Likes: 109
Rep Power: 210 Re: ECU/Throttle Body Problems
Disconnect negative terminal from battery
Turn on headlights and depress brake pedal a few times to discharge residual voltage
Turn off all electronics in the interior
Reattach the negative cable to battery
Start engine and let idle (only) until radiator fan engages twice ... roughly 20 minutes.
Turn on headlights and depress brake pedal a few times to discharge residual voltage
Turn off all electronics in the interior
Reattach the negative cable to battery
Start engine and let idle (only) until radiator fan engages twice ... roughly 20 minutes.
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
Lhon Lopez
Mechanical Problems/Vehicle Issues and Fix-it Forum
3
Jun 21, 2019 12:51 PM
garageman402
General Honda Civic Forum Archive.
0
Apr 26, 2007 09:18 AM
