Page 1 of 1 1
Topic Options
#7583348 - 03/02/14 01:39 PM Want to borrow an 00 Si ECM
PottyScotty Offline
Jr Member


Registered: 03/12/04
Posts: 385
Loc: Portland, OR
I want to borrow someone's 99-00 Si ECM to test if mine is bad. I don't need to drive away with it, just check the idle. I'm in the Portland, OR area.

My engine had been running rich for a long time, wearing out the engine prematurely and fouling the O2 sensors & CAT. I rebuild the engine (stock B16A2) but now it's running even richer than before and the idle fluctuates. It was throwing a CEL for an inefficient CAT. Replaced both O2 sensors and cleaned the CAT (skeptical if that actually did anything - soaked it in laundry detergent & water). Now it's throwing a CEL for the IAC valve. I cleaned the IAC with throttle body cleaner, but it had no effect. Had to burp the coolant after that as the idle got really screwed up and it returned back to the original problem, so I don't think it is air in the coolant causing it.

I can't adjust the idle down far enough to meet the manual specs - 450RPMs with IAC & EVAP connectors disconnected. I can only get it down to maybe 800RPMs with the idle screw all the way in. If I remove the IAC and plug the holes in the intake manifold, then I can get the idle down to 450RPMs. So I'm leaning towards a bad IAC, but none of the troubleshooting flow charts indicate it is bad. Everything ends up at replacing the ECM to test if that is bad.

I don't want to just throw money at parts and hope it works.
_________________________
2000 FBP Civic Si

Top
Videos
#7584943 - 03/03/14 02:03 PM Re: Want to borrow an 00 Si ECM [Re: PottyScotty]
PottyScotty Offline
Jr Member


Registered: 03/12/04
Posts: 385
Loc: Portland, OR
Looks like an 00-01 Integra ECM/ECU will work too. Might have to jumper the fuel pump relay pins though as that appears to be the only difference.
_________________________
2000 FBP Civic Si

Top
#7585551 - 03/03/14 06:52 PM Re: Want to borrow an 00 Si ECM [Re: PottyScotty]
PottyScotty Offline
Jr Member


Registered: 03/12/04
Posts: 385
Loc: Portland, OR
Found one.
_________________________
2000 FBP Civic Si

Top
#7596253 - 03/10/14 09:41 PM Re: Want to borrow an 00 Si ECM [Re: PottyScotty]
4doorEG Moderator Offline
Post Master Sr


Registered: 11/23/01
Posts: 6098
Loc: Overland Park, KS
Hmm. Saw this too late. I had a couple
_________________________
94 Civic Hatch
9.85 @ 155 mph


Top
#7653827 - 04/18/14 12:49 AM Re: Want to borrow an 00 Si ECM [Re: 4doorEG]
PottyScotty Offline
Jr Member


Registered: 03/12/04
Posts: 385
Loc: Portland, OR
ECM was fine. Replaced the IAC and fixed my problem.
_________________________
2000 FBP Civic Si

Top
Page 1 of 1 1


Moderator:  4doorEG, 10PlanesCrashing 
Hop to:
Shout Box

CSi Sponsors

DallasColo
Dallas Colocation
Brake Kits
StopTech.Sale BBK Clearance
Brake Kits
Brake Kits Cheap
EBC Brake Kits
EBC Brakes
BuyBrakes
Brake Kits-Pads & Rotors Sets
Cruchfield
Audio/Video/Cameras
DeadWood Knives
Knives, Home & Hunting
Samys Camera
GoPros, Cameras, Gear
TireRack
Tires/Wheels/Suspension
Truck Accessories
Tonneaus, Running Boards
1-800-Flowers
Flowers & Gift Baskets
WeatherTech
Coupon Code "take10"
Porsche Brakes
Porsche Brake Upgrades
Artisan Soap Lab
Handcrafted Bodycare
Advertisement

| Brake Kits Cheap | EBC Brake Pads & Rotors | Performance Brake Kits | Porsche Brake Upgrades-Big Brake Kits | WeatherTech Mats -Coupon Code weathertech10