Geomore
Free Member
Apologies for the brevity of language, lots to cover on a phone.
Summary: should I go ahead with EGR replacement or is a second opinion a good idea?
Had 2018 Ducato for 4 weeks, history of EGR cleaned and MIL before me. Not known if these were linked.
2 weeks ago, error codes:
P0238 turbo boost sensor A high
P0401 EGR flow insufficient.
Manually Cleared and no further codes for 100 miles.
Booked in to garage. Diagnosed corroded PIN on EGR, cleaned and tested but during cold test after rain it threw codes again, same as above plus:
P0236 turbo boost sensor A circuit range/ performance.
Garage wants to replace EGR, but google suggests EGR rarely the cause And more commonly wiring or throttle body (but this may refer to earlier engines?) .
I located throttle body and EGR. Throttle looks clean inside and springs back strongly of moved by hand. Didn't investigate further.
Removed EGR actuator and cleaned pin (bottom left looking at free plug with clip at top). Valve itself seems very snappy and clean, and when running with actuator removed engine strains when running until opened by hand suggesting OK? Actuator motors out and in Apparently at random every minute or so while stationary, and doesn't seem to correspond at all with demand readings on ODB2. (Not sure if these readings can be trusted on a generic reader).
Short Mexican tune up and no further codes, but expecting codes to return at later date!
Should I go ahead with EGR replace (quoted £900 due to 6.5hr labour according to book), buy an EGR myself and swap over actuator, or get a second opinion about it being the EGR at all. Also warned that turbo may be faulty according to codes (I think unlikely, it's showing 20psi max, not making noise and plenty of pull.
May be coincidence but issue always occurred after heavy rain.
Any advice appreciated, no Haynes manual or wirebook to consult on this one!
Summary: should I go ahead with EGR replacement or is a second opinion a good idea?
Had 2018 Ducato for 4 weeks, history of EGR cleaned and MIL before me. Not known if these were linked.
2 weeks ago, error codes:
P0238 turbo boost sensor A high
P0401 EGR flow insufficient.
Manually Cleared and no further codes for 100 miles.
Booked in to garage. Diagnosed corroded PIN on EGR, cleaned and tested but during cold test after rain it threw codes again, same as above plus:
P0236 turbo boost sensor A circuit range/ performance.
Garage wants to replace EGR, but google suggests EGR rarely the cause And more commonly wiring or throttle body (but this may refer to earlier engines?) .
I located throttle body and EGR. Throttle looks clean inside and springs back strongly of moved by hand. Didn't investigate further.
Removed EGR actuator and cleaned pin (bottom left looking at free plug with clip at top). Valve itself seems very snappy and clean, and when running with actuator removed engine strains when running until opened by hand suggesting OK? Actuator motors out and in Apparently at random every minute or so while stationary, and doesn't seem to correspond at all with demand readings on ODB2. (Not sure if these readings can be trusted on a generic reader).
Short Mexican tune up and no further codes, but expecting codes to return at later date!
Should I go ahead with EGR replace (quoted £900 due to 6.5hr labour according to book), buy an EGR myself and swap over actuator, or get a second opinion about it being the EGR at all. Also warned that turbo may be faulty according to codes (I think unlikely, it's showing 20psi max, not making noise and plenty of pull.
May be coincidence but issue always occurred after heavy rain.
Any advice appreciated, no Haynes manual or wirebook to consult on this one!
