Turbospecv Posted June 6, 2014 Report Share Posted June 6, 2014 Hey guys I have a quick question when I'm driving my car my AFR is on point but when I'm driving the car at around 2k rpm the car goes lean all the way to 16 on the aem a/f gauge then after I pass that it goes back regular. I don't understand what could cause it to lean out every time it hits 2k-22k rpm. Your help is highly appreciated Quote Link to comment Share on other sites More sharing options...
scott87star Posted June 6, 2014 Report Share Posted June 6, 2014 That's the area where the injectors transition from the single one to both firing, I'd clean and/or replace the injector clips to start with. Quote Link to comment Share on other sites More sharing options...
Turbospecv Posted June 7, 2014 Author Report Share Posted June 7, 2014 Oh ok makes sence ill clean them tomorrow morning and go from there thanks Quote Link to comment Share on other sites More sharing options...
Turbospecv Posted June 7, 2014 Author Report Share Posted June 7, 2014 Ok just for info. Say I clean them or just replace them if it still happens what could be the next thing causing that ? Quote Link to comment Share on other sites More sharing options...
scott87star Posted June 7, 2014 Report Share Posted June 7, 2014 Fuel pressure fluctuation, O2 sensor bad or going bad, certainly sounds fuel related. Quote Link to comment Share on other sites More sharing options...
Turbospecv Posted June 7, 2014 Author Report Share Posted June 7, 2014 I replaced the o2 like a month ago could they go bad that fast? And I have the led light connected to the car to check for engine light codes and it does not show any I had a tps one show but I fixed it and after that no codes pop up Quote Link to comment Share on other sites More sharing options...
87redcat Posted June 16, 2014 Report Share Posted June 16, 2014 Seems a little low on the RPM's for the vac advance on the dizzy to be bad but maybe. also check the vac lines. So overlooked... Quote Link to comment Share on other sites More sharing options...
Turbospecv Posted June 23, 2014 Author Report Share Posted June 23, 2014 Ok so I bought new injector clips and installed them and the car still leans out around 2k-2500k I did notice that when I start the car it runs perfect until the o2 sensor warms up. I know this cause the cars give the o2 code until warmed up so any time before this it does not lean out after light goes solid meaning o2 is hot it starts leaning out at those RPM points Quote Link to comment Share on other sites More sharing options...
importwarrior Posted June 23, 2014 Report Share Posted June 23, 2014 check the cone filter in the hose between the fuel pump and the sending unit. Quote Link to comment Share on other sites More sharing options...
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