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Need Help, What is code (172), El falcon 

 

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 Post subject: Need Help, What is code (172), El falcon
Posted: Tue Aug 30, 2005 11:26 pm 
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Car started to have low idle, nearly stalling at the lights.

Ran a test and got the code 172. Anyone know what this code means. It was a found on engine running test.

Cheers Luke.
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Posted: Wed Aug 31, 2005 1:18 am 
Getting Side Ways
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how did you do the test? does ur airbag light come up and flash?
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Posted: Wed Aug 31, 2005 1:30 am 
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on a ef it is oxegen sensor (system running lean ) might be the same ??? depends how much they changed things
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Posted: Wed Aug 31, 2005 3:50 am 
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Same on EL's.
172= test condition (running)
Heated oxygen sensor indicates lean condition.

Make sure its not an old fault by erasing the fault codes then run again.
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Posted: Sun Sep 04, 2005 12:14 am 
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just an update, replaced oxygen sensor($72 Repco) and the car is now running fine again.

cheers.............
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Posted: Wed Sep 21, 2005 3:32 pm 
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Done 2000km since oxy sensor replaced and exhaust tip is clean as a whistle, no black stuff. car is not running rich anymore.

Getting 780Km on the highway now( trip computer) with a full tank. Before the trip meter use to only go up to about 600km with a full tank.

Cheers Luke.........
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Posted: Wed Sep 21, 2005 4:34 pm 
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Raises good point.

When code 172 is displayed - EEC is seeing a lean condition from the HEGO. It will then richen the mixture up to try and get a more appropriate fuel mixture. When it makes it as rich as it can, and still seeing lean condition from HEGO - it cracks the s**t and throws up fault 172.

So basically, when EEC says "lean condition on HEGO" - it means the car will be running rich.. if that makes sense??

 

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Posted: Thu Sep 29, 2005 11:29 pm 
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DO YOU KNOW WHAT REPCO MEANS? RIP/EVERY/POOR/CU*T/OFF HAHAHA
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