JeDiMaster

Hey my ecu is blinking every 2 seconds, what does that mean and where can I find something that lists all ecu codes and tells ya what they mean?

Thanks alot

zccr-xsi

1 O2A - Oxygen sensor #1
2 O2B - Oxygen sensor #2
3 MAP - manifold absolute pressure sensor
4 CKP - crank position sensor
5 MAP - manifold absolute pressure sensor
6 ECT - water temperature sensor
7 TPS - throttle position sensor
8 TDC - top dead centre sensor
9 CYP - cylinder sensor
10 IAT - intake air temperature sensor
12 EGR - exhaust gas recirculation lift valve
13 BARO - atmospheric pressure sensor
14 IAC (EACV) - idle air control valve
15 Ignition output signal
16 Fuel injectors
17 VSS - speed sensor
19 Automatic transmission lockup control valve
20 Electrical load detector
21 VTEC spool solenoid valve
22 VTEC pressure valve
23 Knock sensor
30 Automatic transmission A signal
31 Automatic transmission B signal
36 traction control found on JDM ecu's
41 Primary oxygen sensor heater
43 Fuel supply system
45 Fuel system too rich or lean
48 LAF - lean air fuel sensor
54 CKF - crank fluctuation sensor
58 TDC sensor #2
61 Primary oxygen sensor
63 Secondary oxygen sensor
65 Secondary oxygen sensor heater
71 random misfire cylinder 1
72 random misfire cylinder 2
73 random misfire cylinder 3
74 random misfire cylinder 4
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

JeDiMaster

Thanks man, but how do I know what it is and how do the codes work? for example if it flashes every 2 seconds does that count as number 2 in the list? or is it like how many times it flashes in sequence that equals a number in the list?

zccr-xsi

ok when u turn the key on and start the motor count the flashes.for exsample

flash flash flash flash stop crank postin sensor

flash flash flash stop map sensor

it will flash like then u count how many flashes in a row and look how many on the chart theres your code

JeDiMaster

Got it! thanks!

so its Oxygen sensor #1, is that the one coming out of the dump pipe? I assume I have to replace it.

zccr-xsi

yup!

mat18

sorry to thread jack but, what is the most common cause for the code 5

jlicrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mat18 &raquo;</TD></TR><TR><TD CLASS="quote">sorry to thread jack but, what is the most common cause for the code 5</TD></TR></TABLE>disconnected vacuum line or bad MAP sensor

crxnj

you don't start the motor..you turn the ignition to the on posistion,then count the blinks,,,,,
1 short blink = 1
1 long blink = 10

so for exampe 2 short blinks is code 2.....1 long blink and 2 short would be code 12....

zccr-xsi

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">you don't start the motor..you turn the ignition to the on posistion,then count the blinks,,,,,
1 short blink = 1
1 long blink = 10

so for exampe 2 short blinks is code 2.....1 long blink and 2 short would be code 12....</TD></TR></TABLE>


well true u dont need your engine strated i made a mistake but he got the ideal on how to read the codes so that all that matters. and my ecu doesnt do that.1 long blink 2 short blinks for code 12 ,my blinks 12 times then stops.

GMCMI

Where is TDC sensor? In distributor or end of exhaust cam, passenger side?