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Drivetrain / Lean a WOT. Didn't used to be like this
« on: February 18, 2019, 11:47:48 PM »
Before I went to Korea for a year the engine was pulling about 108% on the VE at peak torque. Now it needs over 120%. Not realistic for my motor.
Obviously I'd think the fuel pressure was dropping but it's a solid 58psi the whole time. Injectors are spotless. And I just calibrated the o2's. It has the Bosch 4.9 sensors. LC-2 WB's.
I even checked the valve springs.
The issue is only at WOT. Any other time everything is fine. Any ideas?
Obviously I'd think the fuel pressure was dropping but it's a solid 58psi the whole time. Injectors are spotless. And I just calibrated the o2's. It has the Bosch 4.9 sensors. LC-2 WB's.
I even checked the valve springs.
The issue is only at WOT. Any other time everything is fine. Any ideas?