Check Engine

[tmc_cb7]

My check engine light came on today while and I don't know how to check what is wrong how do I do that ?

[quickangel93]

My check engine light came on today while and I don't know how to check what is wrong how do I do that ?

on the right side of the interior, down below the dashboard, theres a panel. take if off and you will see a blue plug. jumper that plug with a wire and turn on acc on the key position. see how many times it blinks, and come back here and we'll tell you whats wrong.

[AccordXRacer]

EDIT:
If you have a Hanyes manual it can tell you step by step how to check it out, but any to make thinks go quick : The diagnostic connector is located under the passenger side glovebox behind the kick panel. To activate the diagnostic codes, bridge the terminals with a jumper wire or paper clip, then turn the ignition to the ON postition.

[DTaccords85]

If you have a Hanyes manual it can tell you step by step how to check it out, but any to make thinks go quick : The diagnostic connector is located under the passenger side glovebox behind the kick panel. To activate the diagnostic codes, bridge the terminals with a jumper wire or paper clip, then turn the ignition to the ON postition.

What if the check engine lights comes on only after you drive it for a while that is what mine does. So if i turn the car off and then turn it back on the the check light doesn't come on right away. Will i still be able to bridge the terminals and get a code.

[quickangel93]

What if the check engine lights comes on only after you drive it for a while that is what mine does. So if i turn the car off and then turn it back on the the check light doesn't come on right away. Will i still be able to bridge the terminals and get a code.

yes

[DTaccords85]

yes

Ok thanks i have been meaning to check it out but got lazy.

[deevergote]

OBD1 rocks I always have a paperclip handy just in case!

I believe there's a list of codes in the Technical section as well. Long flashes are 10, short are 1, long pauses are breaks between codes. Keep counting until you get a repeat code (there may be more than one thing wrong).

[samrjr0044]

How do you know when it is finished?

[deevergote]

How do you know when it is finished?

The code will repeat. Long pauses indicate breaks between codes. When you see the same code twice, that's all you get.


Also, for the CEL that comes on only after driving for a while, and doesn't come back when you restart... I'm willing to bet that it's a bad oxygen sensor. The code will come up as the one for "fuel supply system", which is odd... Code 43, if I remember correctly. Many people have fixed it by replacing the oxygen sensor. Mine started doing that after a summer of sitting. It only happens when I reach high speeds, like 55mph+. Hasn't happened in a few weeks now, actually.

[3G-Lude-a-tic]

So does any one have the list of the codes, or are they the same as on a 3rd gen Prelude?

[eastern_ethics]

I have seen a few write ups on the engine codes on here and on honda-tech

[mobman]

I thought that obd-1 could only display 1 code at a time, and once you solve that code, if there are any more then you will see them ??

could also be an egr, i keep getting a code 12(egr), but only once the car is warm, and i am cruising over 90 km/h, similar to your problem

I will eventually get around to cleaning the egr ports and valve

[Gotz Cb7]

http://www.cb7tuner.com/vbb/showthre...ight=ecu+codes

^^ List ^^