Andyreet Posted June 8, 2018 Report Share Posted June 8, 2018 Hey all, I’ve got my engine light on and whe I plug it in so get the message of P0171 - Bank 1 too lean. Any help with what this could be and what exactly it means? Would be much appreciated! Quote Link to comment Share on other sites More sharing options...
Rich Posted June 8, 2018 Report Share Posted June 8, 2018 switch the injector to another and see if the code shifts. Quote Link to comment Share on other sites More sharing options...
Andyreet Posted June 9, 2018 Author Report Share Posted June 9, 2018 20 hours ago, Rich said: switch the injector to another and see if the code shifts. To be honest I wouldn’t know how to do that! Is it simple to do? Quote Link to comment Share on other sites More sharing options...
Rich Posted June 9, 2018 Report Share Posted June 9, 2018 its not that hard Quote Link to comment Share on other sites More sharing options...
Sausage Posted June 9, 2018 Report Share Posted June 9, 2018 http://wiki.ross-tech.com/wiki/index.php/16555/P0171/000369 Quote Link to comment Share on other sites More sharing options...
mk2 Posted June 9, 2018 Report Share Posted June 9, 2018 to do a bit more diagnosis, if you're up for it, if you use the graphing function in vcds, you can get more info. do a track at idle of the lambda or oxygen sensor (depending on what it's called in the app-cant remember...). wait til the engine is warmed up and get a plot of the voltage. post the pic here with the crank sensor timing as a reference and we'll be able to tell you exactly whats going on in the engine. Quote Link to comment Share on other sites More sharing options...
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