power loss
May 22, 2018 | 01:38 AM
#1
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power loss
994r 3.4 power loss under hard acceleration. by power loss I mean car slows . I have replaced plugs wires fuel pump and filter ,timing is fine at idle but when accelerating signal is lost. cleaned mafs replaced fuel pressure regulator
May 28, 2018 | 07:03 AM
#2
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Joined: Apr 2005
Posts: 1,435
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From: Frederick, MD
When you say signal is lost, what signal are you losing? Crank position? Spark?
Under WOT conditions it should go closed loop and use reference data from the ECU. Anything less than WOT and it will use all the sensor data, TPS, MAF, O2, etc.
Do you have any CEL?
Under WOT conditions it should go closed loop and use reference data from the ECU. Anything less than WOT and it will use all the sensor data, TPS, MAF, O2, etc.
Do you have any CEL?
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