engine warning light goes on and off

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engine warning light goes on and off

Postby Tagged » Wed Jan 12, 2011 11:27 pm

Ok this is not about a toyota, its a subaru legacy wagon.

Our family went on a trip last week and drove on the open road for quite a while.
Almost every time when the rev gets high(over taking), the engine warning light goes on.

It will stay on for a couple f minutes and then goes off again.

Whats could be the problem?

Thanks
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Postby Bling » Wed Jan 12, 2011 11:43 pm

Apart from it being a Subaru?


Could be anything :lol: take it to a Subaru mechanic and get the codes pulled (if it has them etc)
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Postby iOnic » Thu Jan 13, 2011 7:15 am

What octane petrol do you run in it and is it the twin turbo version?
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Postby Lloyd » Thu Jan 13, 2011 7:32 am

Knock sensor? Check the codes and see what it has stored
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Postby B_giB » Thu Jan 13, 2011 7:40 am

http://homepages.ihug.co.nz/~ccgrant/celcheck.htm

This explains how to check codes.

If it is a knock sensor, I just did mine on my GTB Twin turbo last weekend, took four hours in total.

Thats the symptoms of mine.

Here was the offending part:

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Postby rollaholic » Thu Jan 13, 2011 7:51 am

four hours! yikes

its just intercooler off isint it?
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Postby blindnz » Thu Jan 13, 2011 8:19 am

I had a coolant temp sensor error do exactly the same.

Under revs the light would come up.

Best to check the codes.
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Postby cat007 » Thu Jan 13, 2011 9:06 am

Normally knock sensors stop working in the higher rpms I thought?
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Postby B_giB » Thu Jan 13, 2011 9:57 am

rollaholic wrote:four hours! yikes

its just intercooler off isint it?


Access to the sensor is rather restricted with my abnormally proportioned hands :oops:
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Postby Tagged » Thu Jan 13, 2011 1:05 pm

BZG|Bling wrote:Apart from it being a Subaru?


LOL, I hope there was a "like" button that I could click on like FB
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Postby Tagged » Thu Jan 13, 2011 1:05 pm

iOnic wrote:What octane petrol do you run in it and is it the twin turbo version?


I think it was 98, and no its my mothers car so it has no turbos in it....a pain to drive when theres 4 ppl + loads of luggage in it...
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Postby Tagged » Thu Jan 13, 2011 1:12 pm

B_giB wrote:http://homepages.ihug.co.nz/~ccgrant/celcheck.htm

This explains how to check codes.


cool thanks! the legacy we have its a 2004 model, would there be any difference?
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Postby B_giB » Thu Jan 13, 2011 2:46 pm

Tagged wrote:
B_giB wrote:http://homepages.ihug.co.nz/~ccgrant/celcheck.htm

This explains how to check codes.


cool thanks! the legacy we have its a 2004 model, would there be any difference?


So its a single turbo model?
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Postby Lloyd » Fri Jan 14, 2011 2:10 am

Tagged wrote:I think it was 98, and no its my mothers car so it has no turbos in it....a pain to drive when theres 4 ppl + loads of luggage in it...
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Postby B_giB » Fri Jan 14, 2011 7:05 am

Lloyd wrote:
Tagged wrote:I think it was 98, and no its my mothers car so it has no turbos in it....a pain to drive when theres 4 ppl + loads of luggage in it...


My bad, I tend to skim read.

Non turbo's are alot easier to do...

Worth fixing, My GTB runs alot better now with the replacement in
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