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put it this way when it comes to having stock motors, u use whatever ecu is meant for the motor regardless of what chassi it is in. once u get the correct ecu for the motor that is in your car u can start looking somewhere else if the problem remains, the ecu is the brain to how the motor will run period. without having the correct ecu to begin with, it will just cause you to waste money and time trying to diagnose a problem that may not be there.
I've already made that suggestion to my brother and he said it would be a waste of money to do that, but the hell with it. I will just try my luck and go for it.
With that being said, anyone have a P06 ecu and a jumper harness for me to test it on? Long shot, but it's a start!
OBD2 is way more advance then obd1, any little thing that it doesn't find correct it will basically shut the car down and prevent it from operating normally until problem is fixed. OBD1 is not as advance and doesn't look for half the things that obd2 does, tell ur brother to stop being hard headed and fix the problem the right way.
Quote:
Originally Posted by 00Civic
^^ makes sense.
I'm still looking for a P06 ecu. Can't seem to come across any. LMK if you do!
I picked up the P06 ecu today, and now need a OBD 2 to OBD 1 jumper harness.
Do I need the OBD2A to OBD 1 harness or the OBD2B to OBD 1 harness? What is the difference between the a/b? JW
OBDII A is for 96-98 civic ,
OBDII B is for ONLY 99.00 civic
the whole harness is completely different
UPDATE:
Bought P06 ECU
Bought OBD2 to OBD 1 jumper harness
Bought EX manual transmission.
I will be installing everything at some point this week. Hoping to get this thing on the road by the end of the week!
UPDATE:
Installed new transmission ( with Honda MTF - TY Chris! ).
Installed P06 (OBD 1) ecu w/jumper harness.
Installed new axle.
I am still having a fluctuating idle, and I'm still scratching my head on this issue. Anyone have any ideas? I don't have a throttle body gasket , and am going to pick up one tomorrow. I'm hoping this will solve the issue. My brother peered inside the throttle body and said there wasn't a gasket. Would this cause the fluctuating idle?
Also, I have a custom header ( with no oxygen sensor bung ) and no primary oxygen sensor, but my secondary oxygen sensor is already plugged in. Should I wire up the primary to the secondary so that it reads as one? Would the missing primary oxygen sensor be causing the fluctuations?
I need guidance!
a throttle body without a gasket would definetley cause the idle problem, that is considered a vacuum leak. the missing o2 wont cause the idle problem but ur car will be off on air to fuel ratio. if u have a CEL for o2 fix it
Quote:
Originally Posted by 00Civic
I've already made it a priority to hit up the honda dealership or autozone to get a gasket asap.
dude this is a comon honda problem is call your fast idle controll valve is contrlled by coolant its usually located under the t-body take the t-body off and the valve under it has a late with two 8mm bolts take them out and with a flat head screw driver twist the little plastic thing all the way dwn this should fix your problem. et me know if this helps you.
UPDATE:
I installed the new throttle body gasket, and while I had the throttle body off, I took the time to inspect the FICV ( Fast Idle Control Valve ) and noticed that it was LOOSE all the way out. So I proceeded to twist it all the way down ( closed it ) ( as per se lilhomie's advice ).
This momentarily stopped the fluctuating idle for a few minutes, BUT, it was still a very rough idle. After revving it some more, the fluctuating came back, but only from 1000-1500 instead of the 1500-2000 where it was at.
I, then checked the radiator and filled it up with water. I turned the car over and the fluctuating idling went away, but the rough idle is still there.
What should I do next?
UPDATE:
Right after I made the last post, I went out and put back in the original P2E ecu, and presto! The rough idling went away and it's idling pretty good at 1k.
The whole time....the whole time...it was the fast idle valve. Damn you FITV
And the gasket
Quote:
Originally Posted by 00Civic
i should get some rep for that.lolQuote:
Originally Posted by 00Civic
Actually, I read a website blog on Idling issues, and it told me to do it. I hadn't looked at your post until after. But I'll try and give you reps anyways!
Here is the website. It was VERYYYY helpful.
Mods: You're more than welcome to make it a sticky!
http://ef-honda.com/ben/Badidle.php