Subaru Outback BP9 2007 EJ253 2.5L – lean faults and sluggish on acceleration – Air flow meters, insist on genuine parts for fuel delivery products
Previous Repairs, and the short story
The vehicle was delivered to us after talks about the original issue with the vehicle, which was poor performance and fuel trims high +45.
During the Conversation about the vehicle it was decided that a new air flow meter be installed and the vehicle test driven to confirm the fuel trims are coming back into line (+ or – 6%)
The vehicle was fitted with a new aftermarket air flow meter and fuel trims checked on the test drive.
Normally when testing the performance on a Diesel engine with lack of power a boost leak would be found or a cracked intercooler, this vehicle has amassed 500,000kms and had never been cracked open servicing had been conducted by us since the word go, full synthetic 5/40 engine oil, upper cylinder cleans every service and no catch can present, here is some photos after 500,000kms
The vehicle now has full performance back to the engine and client now happy injectors and fuel supply is still in perfect condition after 500,000kmsRead More
After fitting in tank fuel pump
System leaning out on suction control valve at high loads
This vehicle was test driven no fault light every thing working well as far as we could see
Air filter was no in correctly in the bottom noisy intake and pending code for rear o2 sensor refitted air filter box and test drive
E-scan data – NISSAN XTRAIL DIESEL M9X