Check engine

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Peter-man99

Guest
I have a buddy with a 94 defender and 85k mile on it. Recently the "check engine" light came on. What are some of the first things he should check. I replaced a couple of O2 sensors at 76k on my disco and told him this. Is there any othe place he should check?


Peter
 
Pugsly

Pugsly

Banned
Apr 20, 2004
382
0
www.roverautomotive.com
by the way, you don't need an OBD reader or anything to check the ECU codes. There is a 2 digit LED attached to the ECU that you read the code off of....

lambda sensor = oxygen sensor
 
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cbass

Well-known member
Aug 23, 2004
218
0
42
Salt Lake City, Utah
Peter-man's friend

So I am the friend Peter-Man is referring to, I thought I'd go ahead an register myself here. Where on the ECU is the readout located? Does anyone have pics of where it is? I'll have a look myself tonight anyway.
TIA
 
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pcarey

Guest
Did you ever find it and the code?
Are there any other symptoms?

pwc
 
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cbass

Well-known member
Aug 23, 2004
218
0
42
Salt Lake City, Utah
No, I haven't found the readout screen yet, but I haven't taken the ECU all the way out yet either. I have been asking in a few different places to see if they can offer some help. I emailed the people at the link that pugsly offered. I'm waiting to hear back from them.

As for other symptoms, I have noticed it doesn't quite have as much power as it used to, and I think that might be a result of the O2 sensor. But really nothing other than that.
I'll keep you posted.
 
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pcarey

Guest
Did you try the d-90 source as well? www.d-90.com
Chdeck under the passenger seat. Sorry I don't know exactly where it is on your truck. It'll be a black box about the size of a deck of cards. All black looking when the truck is off but if there is a CEL while on, then the box will show a code.

For reference, the OBD box and the ECU are two seperate things.

pwc
 
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