How to Check CEL?

[Josh26]

My cars is throwing a CEL.....ok 1st start in the morning its all fine about 15 minutes later of driving the car the CEL pops on and give the car gas it bogs and wont rev past 3500..but ok my main question how do i find out why the check engine light is on..Sorry im new to this part of the car CEL and stuff =[
i have a P28 ECU it has no light on it.

[lo-specials]

Take a look at your ECU. It will be throwing a flash light.
For example, when you have 1 long flash light and then 5 short flash lights, it means code 15 and so on.

I've found the list for you:

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

[Josh26]

Take a look at your ECU. It will be throwing a flash light.
For example, when you have 1 long flash light and then 5 short flash lights, it means code 15 and so on.

alright bro thanks for ur help running out to me car. 1 more question does the car gotta be running or anything?

[lo-specials]

alright bro thanks for ur help running out to me car. 1 more question does the car gotta be running or anything?

I always did it with mine. I don't know if you can read it with just the key turned.

[Josh26]

I always did it with mine. I don't know if you can read it with just the key turned.

i have a p28 ecu does that make anything any differnt?

[Josh26]

i have a p28 ecu does that make anything any differnt?

cause im lookin at my old f22 PT3 ecu it has an actual thingy on the outside

[lo-specials]

No, in this case it doesn't. Just when your looking for emission codes there are more differences.

[Josh26]

No, in this case it doesn't. Just when your looking for emission codes there are more differences.

ok cool goin outside to see what i can find out. be back in 10 minutes

[lo-specials]

Ok my friend

[Josh26]

Ok my friend

i can not find a light on my ecu anywhere i got it and and opened it up and i still dont see an light??

[Josh26]

http://www.cb7tuner.com/vbb/showthread.php?t=21259&page=1&pp=20

i found this but i dont have a light.

[Josh26]

Anyone?

[RICHIE*GT35R]

Yo ,the light is your check engine light on you cluster. You jump the wire on the pass side kick panel the one with the blue connector, turn the key and count the flash on the check engine light

[Josh26]

alright thanks its code 17. So ima go to my work and get a fuel injector service and see if that works.

[lo-specials]

alright thanks its code 17. So ima go to my work and get a fuel injector service and see if that works.

17 VSS - speed sensor