ENG: Diagnose a Check Engine Light and S/D4 errors.

[Night Wolf]

I tryed this trick. but me engine light just stays on. does it mean my if my ECU blown?

[d112crzy]

If it's not on without being jumped, and you then you jump it and it stays solid, then you have no code. That's what it does when you have no codes.

[Night Wolf]

If it's not on without being jumped, and you then you jump it and it stays solid, then you have no code. That's what it does when you have no codes.

well even before I did this. it was on

[accordaffair]

So there's a problem thats always there, do you get any kind of code when you jump it? Possible bad ecu

[Night Wolf]

So there's a problem thats always there, do you get any kind of code when you jump it? Possible bad ecu

I get nothing at all. I even cut the plug off & just connected the wires together. but the "check engine" light just stays on


btw I have a major problem. & after reading this topic I think it might be the ECU

what my problem is...
http://www.cb7tuner.com/vbb/showthre...04#post1357304

[accordaffair]

I have an ecu lying around you can have, I think its a pt3 though, but it can run an A6 engine just fine. If you want it, it's yours

[slammed4thgen]

awesome


just the crap i didnt want to be wrong

[102030405]

I'm having the same problem as Night Wolf, I get no code with a solid light, jumping it doesn't do anything and pulling fuses & battery do nothing. should I get a new ECU ?

[ap716]

my cel stays soild but my abs light blinks so i went with the abs light
any help on fixing code 48 lean air fuel sensor.

[102030405]

well I figured out why my engine light was on, turns out when i did the dash light conversion to LED's, the LED I used creates my engine light to stay on, and when I try and throw a code it gets slightly brighter if you look real close, so I thought it wasn't doing anything, I replaced it with the original bulb and now my engine light goes out and I have no codes causing me problems. good thing it didn't end up being a bad ECU.

[slammed4thgen]

good thing it didn't end up being a bad ECU.

yeah thats good

even though there are a billion in the junkyard

my cel(s) are fixed

[102030405]

yeah thats good

even though there are a billion in the junkyard

my cel(s) are fixed

maybe a billion in a junkyard somewhere but not where I live, being from a small town nowhere near a big city makes it hard to find parts.

[xheartlesskingx]

Wtf??

I tried to jump the ecu codes out but i cant get it because the 2 wires that goes to the connector are seperated and put into 2 different places look...

http://i223.photobucket.com/albums/...sskingx/ecu.jpg

[pwrusr]

I tried to jump the ecu codes out but i cant get it because the 2 wires that goes to the connector are seperated and put into 2 different places look...

http://i223.photobucket.com/albums/...sskingx/ecu.jpg

Link doesn't work I'm getting a shortend version of it even when I click. URL = same as above.

[xheartlesskingx]