Mechanics

I CHECKED THE ECU ON MY 93 BY JUMPING IT WITH A PAPER CLIP. THE CODE GOES LIKE THIS: 3 SHORT, 3 SHORT, 9 SHORT, 4 LONG. AFTER THIS THE FIRST 3 SHORTS ARE GONE AND IT REPEATS: 3 SHORT, 9 SHORT, 4 LONG. SO THE DIFFERENCE IS THAT THE FIRST 3 SHORT

1993 Honda Civic • 190,000 miles

I checked the ECU on my 93 Civic by jumping it with a paper clip.
The Code goes like this:
3 Short, 3 Short, 9 Short, 4 Long.

After this the first 3 Shorts are gone and it repeats: 3 Short, 9 Short, 4 Long.
So the difference is that the first 3 Short are eliminated.

What does the first set and the second set mean?
Avatar
Mpark8790@gmail.com
October 14, 2011.



See below

OBD I Trouble Codes

Code 0 Faulty PCM
Code 1 Oxygen Content
Code 3-5 Manifold Absolute Pressure (sensor)
Code 4 Crankshaft position sensor (CKP)
Code 6 Coolant Temperature
Code 7 Throttle Angle (TPS)
Code 8 TDC position
Code 9 No. 1 cylinder position (CYP)
Code 10 Intake Air Temperature (IAT)
Code 12 Exhaust Gas Recirculation System
Code 13 Barometric Pressure
Code 14 Idle Air Control (IAC) valve
Code 15 Ignition output signal
Code 16 Fuel Injector
Code 17 Vehicle speed sensor (VSS)
Code 19 Lock-up Control Solenoid
Code 20 Electronic load detector (ELD)
Code 21 Variable Valve Timing and Valve Lift Solenoid - VTEC solenoid check
Code 22 Variable Valve Timing and control pressure switch
Code 23 Knock Sensor
Code 30 A/T FI signal A, (Automatic transmission vehicles)
Code 41 and 48 Oxygen sensor heater
Code 43 Fuel Supply System

Rasmataz
Oct 14, 2011.
This, in no way, answers my question.

Tiny
Mpark8790@gmail.com
Oct 14, 2011.
I guess you get what you pay for. Would have paid more if I was satisfied with the answer. Now I'm glad that I didn't pay more than the minimum.

Tiny
Mpark8790@gmail.com
Oct 14, 2011.
Above is for Hondas OBD1 codes and your year is 1993 its not a 95 and above that uses the OBD2

You sure you're reading it right? Sample DTC 12 its gonna be a flash and then a flash-flash=-disatisfied request for refund

Rasmataz
Oct 14, 2011.
I understand the that shorts are equal 1 each and longs equal 10 but if there are multiple codes my understanding is that the codes are somehow mixed and I don't understand how to read them in this case.

Tiny
Mpark8790@gmail.com
Oct 14, 2011.
It will flash the no. 3X and goes to the next code if any present

Rasmataz
Oct 14, 2011.
Okay then the code is definitely
3 Short 9 Short 4 Long
So 3, 9, 40 Right? Which code would that be on the Trouble Codes Chart?

Tiny
Mpark8790@gmail.com
Oct 14, 2011.
You have a Code 3, Map sensor fault.

Code 9, a fault with the cylinder position sensor, most probably requires the distributor to be replaced.

Code 40, is not listed in the trouble code definition table. Can you reconfirm?

KHLow2008
Oct 18, 2011.
It definitely has 4 LONG blinks. What that means, I don't know. Could be code 43 - Fuel Supply System. What might that be?

Tiny
Mpark8790@gmail.com
Oct 19, 2011.
If the pause between the 4 long blinks and the 3 short blinks are shorter than between the 9 short blinks and 4 long blinks, it would be Code 9 and Code 43.

Code 43 is a fault with the heated O2 sensor which is only applicable for Federal specifications with D15B8 engines.

Would you be doing the diagnostics yourself?

KHLow2008
Oct 19, 2011.
Page 1 of 2