Check Engine Light

[ramstar]

ok guys im only new at this and i dont even know if i am in the right place but here go's.

i have a 1994 r33 rb25det s1 and my check light is on the dash...

the light comes on for a while then goes out for about 5 sec then appears again for a min or so then go's out for a couple sec and so on

i have done some reading and i have learnt how to bridge to loom to do a diagnostic, but the problem is the engine light dose not flash any codes at me when i do this

can anyone tell me why this is and how can i get the codes out of my ecu

this is my first skyline i have owned

any help will be muchly appreciated

[Mick]

ok maybe you arnt bridging the right pins, turn your ignition on and when you bridge the pins the engine light will turn on, keep it bridged for a few seconds and then release the pins and the engine light will flash your codes at you. The only alternative is to hook it upto a consult program an a laptop using something like datascan, you will need a special cable to do this

[Mick]

these are the pins posted by another member

[ramstar]

thats the plug iv been trying to bridge.. any chance on pointing me in the right direction on getting a program for my laptop and a data scan...

is that just a obd2 reader or more complex......

[thebawse]

What ecu are you running? The consult port will only work with a standard ecu.

As for the port itself, it's called 'Consult' and is pre OBD2. You need to get a special cable and software to use it. Check this out:

http://www.ecutalk.com/interface.aspx

[Mick]

that is a very good point, if you are bridging those exact pins in the picture and nothing is happening you may have an aftermarket ecu, some are a full replacement and some just change the circuit board in the original one, rip the passenger side kick panel off and have a look, if you see apexi or something like that on it then its aftermarket

[ramstar]

thanks heaps guys iv ordered one and just gota wait to see if it works when i get it. ill have a look at my ecu take a photo of it and see what you guys think but by memory i carnt rember seeing any apexi or brain on there

[Mick]

if you need software i can help you out, i have a few different ones that are good. Just email me at [email protected] and i will see what i can do for ya