A poor running car that otherwise has a good tune is sometimes hard to diagnose. Injectors will flow fuel for many years without wear, but as the car gets over 200k miles it may be time to test them.
Use water to spray around the injectors to test for a bad seal. A momentary decrease in idle speed indicates that the seals are bad. (Bad seals also cause a lean condition, and depending on your fuel injection system can cause other problems).
An engine that is rough at idle but clears up on acceleration may have a worn injector. On LH cars just disconnect the injector plug to find the injector that is not opening correctly. Replacing a bad injector will smooth the idle and give more power on acceleration.
Some injectors are sold without seals.
Please check fitment listed below to ensure products will fit your specific vehicle. Some products may include or exclude some model years or engine and transmission combinations. The products listed on our website are for Volvos sold in the North American market. Many of the parts are exactly the same as those used in other markets, however we cannot guarantee fitment for those markets.
ipd does not charge your credit card until the product actually ships from our warehouse.
