How to fix poor engine starting and oil burner by replacing just one part
- May 12, 2023
- 0
There can be a whole host of different hidden surprises in a used car that even a service technician’s scanner won’t always detect. But what if the behavior
There can be a whole host of different hidden surprises in a used car that even a service technician’s scanner won’t always detect. But what if the behavior of the “iron horse” has changed a lot: increased fuel consumption, there were interruptions in the operation of the power unit? Few people know that it is quite easy to overcome these problems, and – what is important – without special equipment. This is what the AvtoVzglyad portal tells about.
When “misunderstandings” begin in the morning when starting the engine, the driver becomes tense. It is felt that with inactivity there is a “tremor”. Electronic “brain” somehow tries to adjust the fuel-air mixture, but it does not always succeed. The unit can stall, both in the parking lot and in motion. Usually they sin on a lot of knots and details. For example, there may be a malfunction in the ignition module, clogged nozzles, dirty candles or an air filter. But with all this there are no problems. Where should you look?
In the engine compartment there is a so-called adsorber valve (not to be confused with an adsorber that is located under the floor at the rear of the car and that is a completely different device).
This valve opens only on the signal from the engine control unit (ECU) and begins to flow air through itself. When the device breaks, it stops holding pressure. Thus, it turns out that air is continuously “driven” through it into the engine. It enters the intake manifold and bypasses the mass airflow sensor (MAF). As a result, the fuel mixture does not become the mixture that the ECU determines, precisely targeted by the DMRV data. The result is described above: increased fuel consumption, tripling and difficult starting in the morning.
Solving the problem is quite easy. You can find a working adsorption valve at the car disassembly or buy a new one at a store. And other handy motorists just block it. To do this, connect a rubber hose through which excess oxygen passes. At the same time, it is useful to examine precisely this tube. Leaks can also get through if the rubber has dried out and cracks have formed.
Photo: Drive2.ru (automag76)
When “misunderstandings” begin in the morning when starting the engine, the driver becomes tense. It is felt that with inactivity there is a “tremor”. Electronic “brain” somehow tries to adjust the fuel-air mixture, but it does not always succeed. The unit can stall, both in the parking lot and in motion. Usually they sin on a lot of knots and details. For example, there may be a malfunction in the ignition module, clogged nozzles, dirty candles or an air filter. But with all this there are no problems. Where should you look?
In the engine compartment there is a so-called adsorber valve (not to be confused with an adsorber that is located under the floor at the rear of the car and that is a completely different device).
This valve opens only on the signal from the engine control unit (ECU) and begins to flow air through itself. When the device breaks, it stops holding pressure. Thus, it turns out that air is continuously “driven” through it into the engine. It enters the intake manifold and bypasses the mass airflow sensor (MAF). As a result, the fuel mixture does not become the mixture that the ECU determines, precisely targeted by the DMRV data. The result is described above: increased fuel consumption, tripling and difficult starting in the morning.
Solving the problem is quite easy. You can find a working adsorption valve at the car disassembly or buy a new one at a store. And other handy motorists just block it. To do this, connect a rubber hose through which excess oxygen passes. At the same time, it is useful to examine precisely this tube. Leaks can also get through if the rubber has dried out and cracks have formed.
Source: Avto Vzglyad
Donald Salinas is an experienced automobile journalist and writer for Div Bracket. He brings his readers the latest news and developments from the world of automobiles, offering a unique and knowledgeable perspective on the latest trends and innovations in the automotive industry.
