Hey, I've got Urlik here in ABQ trying to get him home with some power. Need to test N75. Can't find using search, my Bentley is at home.
How do you test it with a voltmeter? Is it supposed to be like 14 Ohms resistance between the contacts?
Problem: No boost. No boost gauge, but you can tell there's no boost when you drive it.
Codes: One intermittent overboost code
Fuel Trims: -1/-3 i.e. perfect, no indication of vac or boost leaks.
MAF: logs 2.5 g/sec at idle, up to 38-50 g/sec max. Seems like MAF is logging lack of boost accurately, so I don't think it's an MAF problem.
Logging Data while driving: Block 114 Wategate duty cycle goes to 99.6%, block 099 fueling goes from closed-to-open loop, so the chip is working and asking for boost (i.e. it's not in limp mode).
Therefore something downstream from ECU is not working, either N75 or Wastegate. Accurate conclusion? Hence need to test N75.
Thanks - Rusty and Urlik
How do you test it with a voltmeter? Is it supposed to be like 14 Ohms resistance between the contacts?
Problem: No boost. No boost gauge, but you can tell there's no boost when you drive it.
Codes: One intermittent overboost code
Fuel Trims: -1/-3 i.e. perfect, no indication of vac or boost leaks.
MAF: logs 2.5 g/sec at idle, up to 38-50 g/sec max. Seems like MAF is logging lack of boost accurately, so I don't think it's an MAF problem.
Logging Data while driving: Block 114 Wategate duty cycle goes to 99.6%, block 099 fueling goes from closed-to-open loop, so the chip is working and asking for boost (i.e. it's not in limp mode).
Therefore something downstream from ECU is not working, either N75 or Wastegate. Accurate conclusion? Hence need to test N75.
Thanks - Rusty and Urlik