What causes engine to surge at idle?

If an engine is not getting enough fuel (this is called “running lean”), due to fuel pressure (regulated by the fuel pump and regulator), restricted fuel injectors, a vacuum leak or really anything that throws off the fuel mixture going in to the engine, this can cause the surge.

What is Saab limp mode?

Also known as ‘limp home mode’, limp mode is a security feature in cars which activates when the engine or transmission control unit picks up a fault. This is to ensure the fault doesn’t cause anything serious to happen and helps the car to ‘limp home’.

Can a bad alternator cause high idle?

If your powertrain control computer is misreading idle speeds, this can cause a high idling malfunction. When your car’s throttle is malfunctioning, this can cause your car to stall or idle high. And a bad alternator can also cause fast idling in your engine.

Do all Saab 9-3s have turbocharged engines?

All U.S. Saab 9-3s featured turbocharged engines as standard. Saab manufactured over 326,000 first generation 9-3s from 1998-2002. From 1999-2002 Saab produced a high powered version of the Saab 9-3 called the Viggen. The Viggen, or “thunderbolt”, was named after the Saab 37 Viggen fighter jet and came with a turbocharged 2.3 L engine.

Where can I buy Saab 9-3 parts?

Whatever you’re looking for, eEuroparts.com will deliver the Saab 9-3 parts you need, fast. As always, free shipping is available on your Saab 9-3 parts order totaling $50 or more. There we so many great pictures submitted that could have gone here, but this coming all the way from Japan features a 2001 Saab 9-3 2.0T.

How many Saab 9-3 Viggens were made?

Saab modified several Saab 9-3 parts to handle the increased power, including a larger flow-through exhaust system, stronger CV joints and drive shafts, and an upgrade to the Trionic 7 engine management system, which processes two million calculations every second. Only 4,600 Saab 9-3 Viggens were made.