Hi!

I'm aware of how the ecm codes work. But this one it dosen't seem right:

Long flash from the engine light at a constant interval, I'm not sure if thats a "10"...the flash is same duration has the pause.

The same with my d4 light, its a constant interval, but short flashes...so again not sure if thats a "1".

The car still runs fine. I've read ecm codes before...they are clear to read, but never i've seen these...

Has anyone ever had the same issue?

 

10 from the CEL is intake-air-temperature sensor. Look for loose/dirty/corroded connection or wiring problems; code 10 doesn't guarantee that it's the sensor itself that's bad.

 

Thanks for the info Jim,
I think the D4 blinking is only a reminder that something needs fix in the engine, it dosen't actually mean something specific. I did replace the air temp sensor with an oldie.

Today something new, after riding on the highway for awhile i stopped and it didn't want to start back again. I remember reading something about this when the engine gets too hot. I checked for codes and this time its..18?? Repair manual says there is no such code 18, and i can't find info on the net. Strange.

I let the fan do its work, 5 min later the car starts.

It also been has been stumbling on accelaration, i will check to see if the throttle body is clean.

Thanks again,

 

D4 is transmission code. Is your speedo working?

 

D4 or 'S' light flash codes;

 

Honda Codes OBD1 CEL flash
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

 

My Speedo works fine.

Thanks Honda dude but i dont see a code 18 in the post. This guy was having the exact same problem but no answer:

http://www.hondacarforum.com/honda-2...code-18-a.html

He's specifies "reduce power", i can't confirm that on mine but there is definitely stumbling on accelaration. Maybe there is a link there.

I already had changed the spark plugs. I will change the wires also, check the throttle body for clealiness and later get my fuel filter changed...the bottom bolt on that fuel filter is &#$@ to get to.

Thanks,

 

The stumbling was due to my old spark plug wires. I've replaced them and now its ok. I'll have to wait if my D4 will gave me a trouble code again since i had to unplug the negative battery cable thus erasing the ecu codes, to change the wires.

Thanks,