Afr lean at idle
Quote from Mauriws6 on April 14, 2021, 10:00 pmHey yall, I've installed the 1200hp on a chevy 350 overkill I know but it was given to me ... I got everything wired and truck cranks up every time but I have to hold the gas pedal slightly I have adjusted the iac but one of my main issues is once I get the truck to idle the AFR sits around 20.2-20.6 once I rev it up it moves to around 11.8-12.9 then the rpms come back down and it goes back to over 20 ... I have plenty of exhaust pipe after the 02 sensor and no exhaust leaks.. I've also installed a 2nd new 02 sensor. Any help is greatly appreciated.
Hey yall, I've installed the 1200hp on a chevy 350 overkill I know but it was given to me ... I got everything wired and truck cranks up every time but I have to hold the gas pedal slightly I have adjusted the iac but one of my main issues is once I get the truck to idle the AFR sits around 20.2-20.6 once I rev it up it moves to around 11.8-12.9 then the rpms come back down and it goes back to over 20 ... I have plenty of exhaust pipe after the 02 sensor and no exhaust leaks.. I've also installed a 2nd new 02 sensor. Any help is greatly appreciated.
Quote from Austin DeHaas on June 8, 2021, 10:31 amYou most likely have an exhaust leak. Getting fresh air to the sensor causing it to see lean. Engine is probably running rich as he'll also...
You most likely have an exhaust leak. Getting fresh air to the sensor causing it to see lean. Engine is probably running rich as he'll also...