I'm stumped!!
Was your tune messed with prior to this? Sounds like it isn't going into closed loop at fuel throttle and is reading the fuel scaling from a map it shouldn't be. But I'm also confused that your 1000cc injectors are going static, but yet the car is running lean. Is it knocking? Maybe you need a new wideband O2.
I also had a simliar issue in my subaru when a coil pack went bad. It was reading lean because the gas from that cylinder wasn't burning and was raw gas, therefore the O2 wasn't reading it. Said lean when it wasn't.
I also had a simliar issue in my subaru when a coil pack went bad. It was reading lean because the gas from that cylinder wasn't burning and was raw gas, therefore the O2 wasn't reading it. Said lean when it wasn't.
This explanation seems to make sense. If you have no vacuum leaks and the wideband reads lean at WOT, but at the same time your 1000cc injectors going static!!? If you can get a reading on fuel pressure (and verify your walbro is working properly) on on stock internals and stock turbo there is no way you should be coming close to maxing out 1000cc injectors like that.
It maybe that you wideband is messed up, and reading lean when its not? Maybe try swapping in another wideband to see if that might be the case?
How much boost are you running/trying to tune for?
The intake/filter combination could be f'ing with the MAF sensor maybe...???...
If there is a wideband involved; exhaust leak before the sensor?
The intake/filter combination could be f'ing with the MAF sensor maybe...???...
If there is a wideband involved; exhaust leak before the sensor?
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