Subaru Impreza Common Problems
2020-Mar-23
All posts in Subaru Tuning
Subaru Impreza Fault Codes & Engine Codes explained
2018-Nov-14
2001 Onwards Imprezas use the ODB2 protocol for on-board ECU diagnostics and reporting of sensor and operating faults.
In general the system works well, sensors that fail or operate outside a set range or beyond a threshold will illuminate the CELRead more...
2007> Hatchback and Saloon Models – Failing Wishbone Bushes…
2016-Oct-18
The 2007 onwards Impreza (and some Legacys) are fitted with a different style of front wishbone to previous models, where the rear caster bush is pressed directly into the aluminium arm, rather than being bolted onto the back of the arm.
It's a rRead more...
External Oil Cooler…. A worthwhile modification?
2016-Jan-10
An aftermarket oil cooler isn't usually a high priority in the list of upgrades when extracting more power from a standard Impreza engine, but it shouldn't be overlooked.
The standard WRX and STi engines have 2 separate methods of cooling the engiRead more...
Seized Bolts, Stripped Threads…. Brembo Brake Calipers.
2014-Oct-24
The factory fitted Brembo brake calipers on all 2001> Impreza STi models are a good bit of kit. They perform well when fitted with choice upgrades to the discs and pads, and bled through with decent brake fluid will tolerate a fair amount of hard Read more...
Porting of Exhaust Manifold / Headers and Turbo
2014-Oct-08
The standard exhaust manifold on an Impreza consists of a 3 piece design on a single scroll turbo equipped car. It is a well made item, flowing adequately for a standard production car - when coupled with a suitable uppipe, the standard item doesn't Read more...
5 Speed Gearbox – Centre Differential Replacement
2014-Apr-07
We've just had a 1999 WRX RA into the workshop with a failed centre differential unit.
The diff had locked up, making low speed manoeuvering and parking troublesome, causing the car to violently jolt through the transmission whilst steering on a lRead more...
Pro-R Alcon Brake Upgrade
2014-Feb-18
Today we had a 2004 JDM STi in for a front brake upgrade. The car gets a fair amount of track use, and the customer was looking for an upgrade that could offer a significant improvement over the original Brembo 4 pot caliper setup.
Read more...
Phantom Misfire Fault Codes
2014-Feb-10
Today we had a 2002 Impreza Bugeye WRX in the workshop with the Engine Management Light (EML) on, for diagnostics and repair.
An initial read of the ECU showed 3 'historic' codes saved into memory - P0301, P0302 and P0000, as well as some Learned Read more...
Richard’s 650hp Classic Impreza
2014-Feb-09
Richard's DBM MY00 Classic has been a labour of love, undergoing continual development for the last few years.
Starting from a standard UK turbo, this car has been extensively modified to create an extremely powerful street sleeper that is still vRead more...