Volvo 200 » Fuel Injection

FAILURE OF THIS PART IS THE NUMBER ONE REASON FOR AIR MASS SENSOR FAILURE Many gas powered Volvos have a simple, thermostatically controlled shutter valve in the air filter box. Generally, the thermostatic valve will fail in the pre-heated air position. This routes super heated air to the air mass

The plastic intake hose, located between the air mass meter and the throttle body, is often overlooked. It's easy to miss a failed hose because the hose chafes against the inner fender and rubs through in an area that is not visible without removal. When doing a tune up, always check the hose by mov

Air Mass Meters play a vital role maintaining fuel economy. Faulty Air Mass Meters cause the ECU to default to a safe map which generally means your car is going to run horribly bad due to the excess fuel being funneled through your Volvo s injection system. The Air Mass Meter depends on a few sign

CRC Mass Air Flow Sensor Cleaner is the safe and effective alternative to underground methods of MAF sensor cleaning. Don't use aggressive chemicals like brake parts cleaners or carburetor cleaners on MAF sensors. These can cause serious damage to sensitive parts. Use CRC MAF Sensor Cleaner -- It's

These sealing washers are used in many places on Bosch Fuel Injection systems. They are used on the fuel filter, fuel pump, injector rail, etc.

Here's an inexpensive tester that alllows you to check individual injectors (in the Bosch LH system) are getting the proper voltage. Easily plugs into fuel injector electrical connector. Just crank the engine and watch the light. If it flashes, you've got proper voltage.

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

The pressure regulator controls the fuel system pressure to the injectors. It is controlled by a vacuum line to the intake manifold. When the regulator is operating correctly it will maintain some residual pressure in the fuel system when the engine is shut off. When the engine is running it will mo

A fuel pump either works or it doesn t. Be sure to fault check the wires and the relay before replacing it. A repair to the power source is far less expensive than replacing a misdiagnosed fuel pump. These pumps are the same original Bosch pumps that will last as long as the original.

Not sure how much fuel is in the tank? If your sending unit is original, that means it's "reaching it's golden years." The common "starting to fail" symptom is an inaccurate gauge that momentarily pegs at full. It might work like this for years - and it might not last another week. Put an end to unc

Accessing the pre pump and fuel gauge sender assembly on 240 and 260 models can be a tough job if you don't have the right tools. The difficulty lies in safely removing the large "bung nut" where all the lines are wiring go into the top of the tank. Believe it or not, that's the official name for th

Ensure a tight seal on your fuel system to avoid trouble codes or stalls

Common remedy for poor idle or car that won't idle

Now you can easily adjust the fuel mixture on you K Jetronic equipped Volvo. Over time the fuel mixture can get out of adjustment, causing a decrease in mileage performance and hard starting. With the proper manual you can set the mixture for optimum economy and performance. Be sure to check for vac

An oxygen sensor allows your engine to run as smoothly as possible, because it measures the exhaust gases and relays information to the fuel system control unit. With this information the control unit can fine tune the fuel mixture for optimum fuel economy and power. A dead oxygen sensor can also le

For owners of 1982-89 non-turbo 240 series Volvos, here’s a chance to put an end to intermittent electrical problems with our watertight fuse holder system. With the Bosch® LH fuel injection system, current is supplied from the battery to an exposed blade style fuse. This addresses the problem. The