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Author Topic: EML light on, lots of codes after cat change.  (Read 890 times)

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geoffr70

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EML light on, lots of codes after cat change.
« on: 09 June 2011, 20:47:19 »
Hello all. Changed the cats and lambda sensors on a 2000 (w) 3.0 v6 for aftermarket ones that were a few weeks old. I took out the fuse (29b), the big red 50 amp one, and capped off the SAI. I started the engine and let it tick over till the choke turned off, then manoeuvred it on the drive. It was driven later, when after 15 mins the eml started to flash so quickly it's more or less on permanently, and these codes showed up:

13, O2 sensor 1 open circuit. 31, No engine RPM signal. 48, Battery Voltage Low. 57, Idle air control voltage low, 73, Mass air flow sensor voltage low. 144, Immobiliser no signal. 145, Immobiliser wrong signal.

Any ideas about that anyone? I can't see why all apart from O2 sensor would show up, but you never know. Thanks
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Lazydocker

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Re: EML light on, lots of codes after cat change.
« Reply #1 on: 09 June 2011, 21:06:09 »
That's interesting... Exactly the same problems as in this thread!

Same situation, same problems... Or is it the same car?
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RobG

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Re: EML light on, lots of codes after cat change.
« Reply #2 on: 09 June 2011, 21:11:34 »
Quote
That's interesting... Exactly the same problems as in this thread!

Same situation, same problems... Or is it the same car?
Think it`s the same car Paul. Another member (not OP) agreed to buy my GM cats. http://www.omegaowners.com/forum/YaBB.pl?num=1307206754
Thread was hijacked then I get a message following day saying it wasn`t the cats but a loose heatshield >:( >:( >:(
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geoffr70

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Re: EML light on, lots of codes after cat change.
« Reply #3 on: 09 June 2011, 21:13:30 »
Quote
That's interesting... Exactly the same problems as in this thread!

Same situation, same problems... Or is it the same car?

Yes!
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geoffr70

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Re: EML light on, lots of codes after cat change.
« Reply #4 on: 09 June 2011, 21:15:02 »
Quote
Quote
That's interesting... Exactly the same problems as in this thread!

Same situation, same problems... Or is it the same car?
Think it`s the same car Paul. Another member (not OP) agreed to buy my GM cats. http://www.omegaowners.com/forum/YaBB.pl?num=1307206754
Thread was hijacked then I get a message following day saying it wasn`t the cats but a loose heatshield >:( >:( >:(

Wouldn't say I hijaced it tbh. Just giving him a wider range of options
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Lazydocker

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Re: EML light on, lots of codes after cat change.
« Reply #5 on: 09 June 2011, 21:15:09 »
Quote
Quote
That's interesting... Exactly the same problems as in this thread!

Same situation, same problems... Or is it the same car?

Yes!

Ahhh... Duplicate thread. That explains it. I was thinking it was a huge coincidence for a minute and related to poor quality cats ;) ;)
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Jimbob

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Re: EML light on, lots of codes after cat change.
« Reply #6 on: 09 June 2011, 21:48:22 »
locking this as duplicate then
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Marks DTM Calib

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Re: EML light on, lots of codes after cat change.
« Reply #7 on: 10 June 2011, 10:13:32 »
I wouldn't say this is the same thread at all.

One is talking about blocked cats and the blowing of secondary air injection pipes and the other about a pile of fault codes which have appeared after changing cats (note, check battery voltage!)
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