FilS004 Posted May 8, 2016 Share Posted May 8, 2016 Hi all I have rebuilt my engine (well put it back together) and I have found that although it seems to be running smoothly, the air fuel ratio is running around 21, and I think it should be around 12. As I have had the injectors cleaned and all of the cylinders are firing, what sensors could be causing this problem. I am guessing Lamda or something like that is telling the CU that there is not enough air in the mixture. Any ideas? Quote Link to comment Share on other sites More sharing options...
goldenvtr Posted May 8, 2016 Share Posted May 8, 2016 is that on idle? would of though it might splutter at that afr... what wideband do you have Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 8, 2016 Share Posted May 8, 2016 As above, are you using a wide-band lambda setup to obtain that reading, as if its a constant there is something wrong with the wide band. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 8, 2016 Share Posted May 8, 2016 The reading is incorrect, it wouldn't even run at that AFR Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 9, 2016 Share Posted May 9, 2016 True, that just about free air, no fuel, so wouldn't be running, something wrong with the lambda or controller. Quote Link to comment Share on other sites More sharing options...
FilS004 Posted May 9, 2016 Author Share Posted May 9, 2016 Yeah, it is a wideband AFR, so I will reset the Lamda and see what happens. When I first ran up the engine, it was running around 12 and very smooth, and there is a definate difference in the engine running, so I guess that it has actually changed, just maybe by not that much. Quote Link to comment Share on other sites More sharing options...
FilS004 Posted May 9, 2016 Author Share Posted May 9, 2016 Yeah, it is a wideband AFR, so I will reset the Lamda and see what happens. When I first ran up the engine, it was running around 12 and very smooth, and there is a definate difference in the engine running, so I guess that it has actually changed, just maybe by not that much. I have only revved it up to 2K, so only just above idle, and there wasn't much of a problem, so it must be the Lambda need resetting Quote Link to comment Share on other sites More sharing options...
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