Posting here for additional viability
This is cross posted on NA BMW Diesel Owners
429A low pressure deviation; many new parts I'm at a loss. HELP!
I've been chasing this issue on my 2013 35d for a while now, and cannot seem to figure it out. Currently have 107k miles, new water pump, thermostat, glow plugs, glow plug controller, vacuum res, vacuum controller, pressure converters and vacuum lines, boost hose seals, cleaned MAF.
- Boost seems low across entire range (although not sure what should be expected?)
- DDUMD Stage 1 tune sll stock hardware less EGR delete
- Trans tune from Rod
- 429A came back on my test run tonight, it sometimes feels laggy between 3000-3700RPM. Also for the first time I noticed 452A which appears to be a DPF related code.
UPDATES
Any help\guidance is appreciated.