Hi ALL,
I have searched hi and low in the forums for this code or similar faults but couldn't find anything , sorry in advance if I have doubled up on a previous post
I have a 2012 Telstra spec Ute with a ZD30ddti.
Quick history:
When I bought the vehicle 1.5months ago it came up with a maf sensor earth fault, changed the maf , didn't fix it, ran a wire from the maf earth to the earth point on the engine , all fixed no further issues. then,
I changed the exhaust out to a 3" with a single muffler and after that code PO123 came up, the light comes and goes but the problem remains.
The engine loses all power and boost goes down to nothing , then it picks up and drops off, can feel the engine surging, mainly happens at low speed going through gears but can pretty much notice it through out the range.
when surging the boost was spiking around 20psi so I built and fitted a spring & ball type boost controller and thought I had fixed it but no its still there, although the engine runs better now (maxs out at about 13psi) and feels to have more power.
Nissan told me the throttle body was U/S and they could get me a new one for RRP $2700 but could probly do it for $2400.
Surely there is a better / cheaper fix
Thanks