Engine 850: B5234TR/2.3/20v/T5R: - 2-3-1 fault code

fatgut · Nov 23rd, 2007, 22:19

Hi all, my lambda light has come on and I have a fault code of 2-3-1, apparently my long term mixture is too rich in the part-load stage ???
Could anyone explain to me what this means and what may be causing the problem.

Thanks - Sean

Chris_Rogers · Nov 24th, 2007, 17:35

2-3-1, = long term mixture at limit in the part-load stage.

Does not mean it's too rich, it means the limit has been reached, either too lean or too rich.

I would start by looking for an induction air leak, maybe a split hose near the ilde air valve.

fatgut · Nov 24th, 2007, 18:59

Thanks chris, I'll check for leaks in the morning, I also have Mr. Haynes and his manual to thank for telling me that my mixture was too rich.

Sean

wacRon · Nov 25th, 2007, 17:10

hi there i had the same code & the car running very rough,it turned out to be the fuel pump was running slow, your problem could be one of the pipes from your tank/pump?

fatgut · Nov 25th, 2007, 17:56

Thanks, I checked for damaged/split hoses today and couldn't find anything wrong so I'll take a look at the fuel pump and pipes as soon as I can.

Sean

Nov 23rd, 2007, 22:19	#1
fatgut New Member Last Online: May 8th, 2024 22:34 Join Date: Nov 2006 Location: raunds	2-3-1 fault code Hi all, my lambda light has come on and I have a fault code of 2-3-1, apparently my long term mixture is too rich in the part-load stage ??? Could anyone explain to me what this means and what may be causing the problem. Thanks - Sean

Nov 24th, 2007, 17:35	#2
Chris_Rogers VOC Member Last Online: Apr 10th, 2017 16:55 Join Date: Jan 1970 Location: South Kent Coast	2-3-1, = long term mixture at limit in the part-load stage. Does not mean it's too rich, it means the limit has been reached, either too lean or too rich. I would start by looking for an induction air leak, maybe a split hose near the ilde air valve.

Nov 24th, 2007, 18:59	#3
fatgut New Member Last Online: May 8th, 2024 22:34 Join Date: Nov 2006 Location: raunds	Thanks chris, I'll check for leaks in the morning, I also have Mr. Haynes and his manual to thank for telling me that my mixture was too rich. Sean

Nov 25th, 2007, 17:10	#4
wacRon voc 21479 Last Online: Jan 28th, 2011 17:24 Join Date: Jan 2007 Location: stornoway	hi there i had the same code & the car running very rough,it turned out to be the fuel pump was running slow, your problem could be one of the pipes from your tank/pump?

Nov 25th, 2007, 17:56	#5
fatgut New Member Last Online: May 8th, 2024 22:34 Join Date: Nov 2006 Location: raunds	Thanks, I checked for damaged/split hoses today and couldn't find anything wrong so I'll take a look at the fuel pump and pipes as soon as I can. Sean

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