Best answer: Can a modern day car be repaired without the use of a computer?

Yes, it is possible.

Can a car work without a computer?

Yes, but so can an automatic. You’ve run two different parts into each other here. An ECU is an Engine Control Unit. It controls the engine, things like ignition timing, fuel injection, air/fuel ratios, etc.

Can a car go without a computer box?

yes you can bypass the computer but bear in mind, depending on which car it is, you may need to replace a lot of sensors and control valves with manual devices. For one, you’ll need to a find a new way to regulate fuel & air into the fuel injection – so you’ll basically go back to how carburetors worked.

Can a car run without ECU?

Originally Answered: Can a car run without ECU? No. Not a modern car with fuel injection. Even, if it were possible to not use a ECU, your car would not pass the emission testing at your annual car inspection.

Why might a computer be used in a modern car?

All cars manufactured today contain at least one computer. It is in charge of monitoring engine emissions and adjusting the engine to keep emissions as low as possible. The computer receives information from a many different sensors, including: The oxygen sensor.

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What cars dont have computers?

Top Cars For Tech-Averse Buyers:

  • Hyundai Accent GS hatchback and GLS sedan. …
  • Kia Rio LX hatchback or sedan. …
  • Mazda Mazda3 iSV sedan. …
  • Mazda MX-5 Miata Sport. …
  • Mitsubishi i-MiEV. …
  • Nissan NV Passenger Van. …
  • Nissan Titan S King Cab and Crew Cab. …
  • Smart ForTwo Pure Coupe.

Will a car start with a bad computer?

Your Car Fails to Start

If your ECM can’t make adjustments to your car’s timing or air to fuel ratio, the vehicle may not start at all. Of course, there are other reasons a car may not start, including a bad starter or a blown alternator. … Once again, you’ll need to take your car to a mechanic to be sure.

Does fuel injection require a computer?

Originally Answered: Is fuel injection possible without the vehicle having a computer to program the injectors (ie purely mechanical)? Yes. All fuel-injected engines started out that way.

Does the ECU have to match the engine?

In general, yes. All ECUs will need to have software intended to run the engine it is connected to. In addition, many newer cars (approximately 2008 or newer) use a CAN bus system where each component (like the ECM, BCM, PCM, etc) all need to be programmed to the VIN number of the car to work properly.

Can a car start without ECU fuse?

It will start without the backup fuse. The backup fuse just keeps the ECU memory alive.

How much does it cost to replace a ECU?

On average, you can expect the parts cost to be anywhere from $400 to $1,400 while the labor costs are roughly from $100 to $200 for reprogramming and installation. You may be able to save some money on a refurbished ECU but that usually comes with a bit of risk.

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How did cars run without ECU?

They would have either springs and/or a vacuum based system that would advance or retard spark timing based on rpm and engine load. To adjust base timing you’d literally loosen a bolt and turn the cap clockwise or counter-clockwise.

Why do mechanics need computers?

Modern cars do not just run on fuel anymore. As the automotive world expands and develops, computers are slowly inching their way deeper and deeper into vehicle control systems. … This is why auto mechanics should have knowledge about computer systems and how they integrate into the car.

Why do car mechanics need to understand computer technology?

Vehicle computer systems today are primarily accessed by technicians for diagnostic purposes. … Thus, a technician’s knowledge of mechanics that has built up over the years does not become obsolete; they simply need to learn new ways of diagnosing complex problems as well as common system faults.

Can I use a laptop in a car?

Is it illegal to use a laptop in a car? No. Except you want do that while driving – that will be breaking quite a number of traffic laws even if you can pull it off.