Question about reading ECU codes.

ok heres the deal. i have a hunting idle problem, first step would be read any stored codes in the ECU. after jumping the termanals on the service connector and turned the key to ON the usual stuf happens except the the CEL comes on and stays on no flashes, none it just stays light till you pull the jumper. then it goes out and the ABS light comes on. I was lead to believe that if there were no codes the CEL would come on once as a "hello" then go off. any ideas?
also if it matters or not just so you know it a 92 Prelude si.

 

what no takers on this. it shouldn't be that hard of a question..either there is a prob with the ECU or there are no codes im asking because this is the first car i have ever had that is this new. i used to like em old school.

 

There are no codes.

 

Sorry bro, your wrong...There is such a thing as an ECU trouble code...Here are all of the ECU codes for 4G ludes:

TROUBLE CODES

0 - ECU
1 - o2 Sensor
3 - MAP Sensor
5 - MAP Sensor
4 - Crankshaft Position Sensor
6 - Engine Coolant Temp Sensor
7 - Throttle Position Sensor
8 - TDC Position Sensor
9 - #1 Cylinder Sensor
10 - Idle Air Temp Sensor
12 - EGR Valve Lift Sensor
13 - Barometric Pressure Sensor
14 - Idle Air Control Sensor
15 - Ignition Output Sensor
16 - Fuel Injector
17 - Vehicle Speed Sensor
20 - Electrical Load Detector
21 - VTEC Solenoid Switch
22 - VTEC Pressure Switch
23 - Knock Sensor
30 - A/T Sig A
31 - A/T Sig B
41 - o2 sensor heater
43 - Fuel Supply System

you want me to list gear ratio compressions for 4g's too???:naughty:

Hope these help bro
Rezza

 

Right... I believe he meant current codes. If the check engine light did not blink while it was jumped, then there are no codes to be displayed, but if the abs light stays on while driving and the ecu still does not blink any trouble codes check the following:

1.Loose or poor connection of the wire harness at the ABS conrtol unit.
2.Faulty ABS B2 (15 A) fuse in the fuse relay box under the hood.
3.Check for an open circuit in White wire between the ABS (15a) fuse in the fuse relay box under the hood, and the ABS control unit.
4.Check for an open circuit in BLK/YEL wire between the No. 9 R/C MIRROR (15 a) fuse in the under-dash fuse/relay box and ABS control unit.
5.Short circuit in BLU/RED wire between gauge assembly and ABS control unit.
6.Open circuit in Wht/BLU wire between alternator and ABS control unit.
If the problem is still not found, substitute a know-good ABS control unit and recheck to see if the ABS light still stays on.

 

i think im gettin code 10 and code 8

how do i fix this

clean the sensors?

where are those 2 sensors located
8 - TDC Position Sensor
10 - Idle Air Temp Sensor