- Posts
- 2,097
- Location
- East of England, UK
I've had my Defender for 4 years and it was pointed out to me last week that the loom is from a later 15p engine (has two plugs for EGR, 4 pin AAP sensor) which I had never noticed before (TBH shortly after getting this defender I did notice the AAP sensor was different and post here but didn't get any response so just got a 4 pin socket for it and plumbed it into the air box, blanking off the old one - thought no more about it)
Question is, does it make any difference? Is the signal from a 4pin AAP different from a 3pin one? Would it even matter? I have a long ongoing problem of low power and have been down all the usual routes. Currently my MAP sensor is reading a max of 173 at full throttle (driving or not). A borrowed boost gauge on the turbo side last week confirmed 230 (23psi) so it's being lost somewhere. I am awaiting a boost gauge to come tomorrow so I can accurately read the inlet side.
I had thought maybe there was a leak somewhere, or possibly even the new intercooler was faulty. Today we bypassed the intercooler and it make no difference whatsoever. Checked for leaks - none.
I am at a loss as to what it can be given the turbo side is pumping out 23psi. Only thing we can think of is the loom is causing problems.
The readings are the same regardless of ECU, sensor or whether its Lynx or Testbook reading the MAP sensor.
Question is, does it make any difference? Is the signal from a 4pin AAP different from a 3pin one? Would it even matter? I have a long ongoing problem of low power and have been down all the usual routes. Currently my MAP sensor is reading a max of 173 at full throttle (driving or not). A borrowed boost gauge on the turbo side last week confirmed 230 (23psi) so it's being lost somewhere. I am awaiting a boost gauge to come tomorrow so I can accurately read the inlet side.
I had thought maybe there was a leak somewhere, or possibly even the new intercooler was faulty. Today we bypassed the intercooler and it make no difference whatsoever. Checked for leaks - none.
I am at a loss as to what it can be given the turbo side is pumping out 23psi. Only thing we can think of is the loom is causing problems.
The readings are the same regardless of ECU, sensor or whether its Lynx or Testbook reading the MAP sensor.
