Why does my Subaru Impreza have a bad idle?

Why does my Subaru Impreza have a bad idle?

In the process of diagnosing the bad idle, I replace several parts (coils, O2 sensor, etc). But recently, it has developed a terrible bog when I give it any sort of throttle. major hesitation, and often some popping from the intake (mini back-fires). This has gotten worse over the last week or so, the car is now hardly driveable.

What is the repair manual for a Subaru Impreza?

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What to do if your Subaru is in an accident?

In the event of an accident, a Subaru Certified Collision Center can properly repair your vehicle. Exclusive extended service contracts for Subaru owners. A trade-in value guarantee for the first eight years of ownership. New Subaru owners may qualify for a vehicle modification reimbursement.

Are there any major leaks in a Subaru?

3. checked plugs (tips are clean, no fouling, they look descent). 4. pressure tested inductions system for major leaks, etc, nothing. 5. Cleaned both MAF’s with sensor cleaner, re-tried both of them. 6. Flow tested injectors, all flowing at 900cc (de-capped stock injectors) at 3Bar. 7.

What should the fuel pressure be in a Subaru?

Flow tested injectors, all flowing at 900cc (de-capped stock injectors) at 3Bar. 7. Installed a fuel pressure gauge, shows exactly specified fuel pressure (3 bar). Just today I installed a new Walbro fuel pump, problem did not change.

Is it OK to rev up Subaru at 3500rpm?

Here is the deal, it is pretty much OK up to 2500RPM, then it bucks violently and stumbles, I can rev through it and stops bucking at 3500RPM. I dont want to rev it up becuase of this problem, so I am stuck driving around under 2500RPM.

What kind of engine does a Subaru WRX have?

Open decks can be seen in early non-turbo engines, and the first 2 generations of WRX’s. These are the weakest Subaru engines, due to the fact they have next to no cylinder wall reinforcement. Closed Deck was once used long ago (early 90’s) by Subaru but quickly discontinued due to its lack of reliability.

Which is the weakest engine in a Subaru?

They have a few points of reinforcement to increase the strength of the cylinder wall. Open decks can be seen in early non-turbo engines, and the first 2 generations of WRX’s. These are the weakest Subaru engines, due to the fact they have next to no cylinder wall reinforcement.