Leisyman

Can anyone send me a list of ecu codes for an OBD1 P28 Ecu? D16Z6 engine has just been rewired after someone else's butcher job and need to troubleshoot using the codes. Also need to know where to activate the code data output so I can read them with the CEL

Thanks

96exb20

CEL? Are you refering to the MIL codes?

if so, above the ecu there is a green rubber thingy. (kinda technical eh?)
there may be one or two plugs inside of it... (one will have 2 wires, the other 3)
get the one with the two wires and jump them together with a piece of wire,
turn the key over and it will flash your check engine light....

long flash = 10
short = 1

1 Oxygen Sensor "A" (Primary)
defective circuit or unplugged / defective sensor

2 Oxygen Sensor "B"
defective circuit or unplugged / defective sensor

3 MAP Sensor (Manifold Absolute Pressure)
defective circuit or unplugged / defective sensor

4 CKP Sensor (Crankshaft Position Sensor)
defective circuit or unplugged / defective sensor

5 MAP Sensor (Manifold Absolute Pressure)
mechanical problem / disconnected piping

6 ECT Sensor (Engine Coolant Temperature)
defective circuit or unplugged / defective sensor

7 TP Sensor (Throttle Position)
defective circuit or unplugged / defective sensor

8 TDC Sensor (Top Dead Center)
defective circuit or unplugged / defective sensor

9* CYP Sensor (Cylinder)
defective circuit or unplugged / defective sensor
* not a valid code for any throttle body injection Hondas
** not a valid code for V-6 engines

10 IAT Sensor (Intake Air Temperature)
defective circuit or unplugged / defective sensor

12 EGR Lift Sensor (Exhaust Gas Recirculation)
defective circuit or unplugged / defective sensor
* not a valid code if car is not equipped with an EGR valve (some Civic models are not)

13 BARO Sensor (Atmospheric Pressure)
defective circuit or unplugged / defective sensor

14 IAC Valve (Idle Air Control)
defective circuit or unplugged / defective sensor

15 Ignition Output Signal
missing or defective ignition output signal

16 Fuel Injector System
defective circuit or unplugged / defective fuel injector

17 VSS (Vehicle Speed Sensor)
defective circuit or unplugged / defective sensor

19 Automatic Transmission Lock Up Control Solenoid Valve
defective circuit or unplugged / defective solenoid valve

20 Electrical Load Detector
defective circuit or unplugged / defective sensor

21* VTEC Solenoid Valve
defective circuit or unplugged / defective solenoid valve
* not a valid code if car does not have a VTEC engine
** not with V-6 engine

22* VTEC Oil Pressure Switch
defective circuit or unplugged / defective oil pressure switch
* not a valid code if car does not have a VTEC engine

23 KS (Knock Sensor)
defective circuit or unplugged / defective sensor
* not a valid code if V-6 engine

30 Automatic Transmission Signal: "A" / SEAF / SEFA / TMA or TMB
defective circuit or unplugged / defective sensor
* not a valid code for 1996

31 Automatic Transmission Signal "B"
defective circuit or unplugged / defective sensor

41 Primary Oxygen Sensor - Heater
circuit malfunction

43 Fuel Supply System
defective or malfunctioning fuel supply system

45 System Too Lean or Too Rich
malfunction in the fuel monitoring systems

48 LAF Sensor (Lean Air Fuel)
defective circuit or unplugged / defective sensor

54 CKF Sensor (Crankshaft Speed Fluctuation)
defective circuit or unplugged / defective sensor

58 TDC Sensor 2 (Top Dead Center)
defective circuit or unplugged / defective sensor

61 Oxygen Sensor, Heated - Sensor 1 (Primary)
high voltage, low voltage, or slow response

63 Oxygen Sensor, Heated - Sensor 2 (Secondary)
high voltage, low voltage, or slow response

65 Oxygen Sensor Heater (Secondary)
malfunctioning or defective oxygen sensor heater

67 Catalyst system Efficiency Below Threshold
malfunctioning or defective catalyst system

70 Automatic Transmission
malfunction with the automatic transmission controls

71 Cylinder 1 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire

72 Cylinder 2 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire

73 Cylinder 3 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire

74 Cylinder 4 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire

75 Cylinder 5 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire
* valid code for V-6 engine only

76 Cylinder 6 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire
* valid code for V-6 engine only

80 Exhaust Gas Recirculation
insufficient flow detected

86 ECT Sensor (Engine Coolant Temperature)
circuit range / performance problem

90 Evaporative Emission Control System
leak detected in the fuel tank area

91 Fuel Tank Pressure Sensor
low input

92 Evaporative Emission Control System
insufficient purge flow

Now if theres any other code besides that.. haha your ecu is screw'd for the most part

Leisyman

Thanks to everyone who provided info. found the troubles, i.e.MAP sensor and VSS, now just have to figure out what is causing it.
MAP should be fairly simple, but.....

There is no wire in the dash harness I can find which will wire to the ecu for the VSS. Speedo needle jumps around wildly under acceleration.
Any ideas?


[Modified by Leisyman, 6:31 AM 4/9/2002]

Leisyman

ALL CLEAR!

Thanks to everyone for the help!. No codes, engine runs great!. Now I have to find a cat convertor, as someone cut out the cat and put in a glasspack. Can't pass Colorado emissions visual inspection without a cat.

anyone have one they want to part with?
Junkyards can't sell them for legal reasons

MonkeyMagic

coo beans

degooser

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Leisyman &raquo;</TD></TR><TR><TD CLASS="quote">ALL CLEAR!

Thanks to everyone for the help!. No codes, engine runs great!. Now I have to find a cat convertor, as someone cut out the cat and put in a glasspack. Can't pass Colorado emissions visual inspection without a cat.

anyone have one they want to part with?
Junkyards can't sell them for legal reasons
</TD></TR></TABLE>

just go to an exhaust shop and have them weld an aftermarket one on...

should not be a problem...