Working on a Stage 3 Roush Supercharger installation. ECM was replaced due to a crack in the case and water shorting is out. Just loaded the tune supplied from Roush and the thing looks like a Diesel. Scan it and see the A/F ratio at Idle is 9.52 one side and around 10 on the other side. Noticed the Baro Pressure reading is 99KPA when in actuality at our elevation it is 89.3KPA. Noticed the KOEO Map reading is 101KPA. All very suspect. I can't find a Baro Sensor or a MAP sensor. Finally after running for a while the idle A/F ratio is 14.7 but long term/short term fuel is pulling out 28%. Install has the Roush Fuel Pump controller so I can only assume its pumping too much fuel at idle but don't know how to adjust it. First Ford I've tuned other that the Diesels. Also of note is the tune has 14.07 listed as target A/F ratio. Any ideas where I might check. Have a trouble ticket with Roush but they haven't got back to me yet. Been a week.
Thanks Rick