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A car will not operate without the a working ECU. If the computer is bad car will not turn on. A driver will not be able to use any of the engines accessories.
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Can a car start with a bad ecu?
Depending on what part of the ecu is bad, yes.
What are the symptoms of a bad ECU in a 1992 Toyota Celica GT?
It is important to know the symptoms of a bad car part. The symptoms of a bad ECU are the check engine light stays on, the car won't start, transmission problems, and bad emissions results.
What causes a 1986 Toyota MR2 engine to cut out?
get your ecu checked out my 91 was doing the same thing, the ecu was bad, and the ground to the ecu was bad, which caused the "fry" to the ecu.
How do you know when an Ecu goes bad on a Mercedes s500?
It will return various error codes or the car will not function at all. This is very rare.
How do you know if your engine problems are related to your ECU?
AnswerYou need to pull the codes and see what they say. you'll need a troubleshooting flowchart to do the testing. There are times that the flowcharts will say to replace the ECU, but that is not always the right solution.Pulling the codes will not always be a solution, however. If the ECU is faulty, or if the ECU has a faulty power supply (e.g. ignition relay to ECU is bad), you may not be able to communicate with the ECU at all.Each vehicle's repair manual should have a flow chart of ECU diagnostics, outlining what connections/terminals to test for voltage and resistance. Essentially, if you have positively verified that all other electrical components are working properly, and you still have signal problems, then you can assume the ECU is bad.
Your ecu is gone in your 90 plymoth lazer 1.8 anyone know where you can get a ECU?
autizone or junk yard
Is it bad to pull the ECU fuse on a 1989 Celica?
i think so
What causes the air-fuel mixture to become too rich?
bad or misreading MAP or MAF sensors, bad ECT sensor, bad TPS sensor, stuck open fuel injector, or problem with fuel system, faulty parameters set in ECU or bad ECU.
What causes the air fuel mixture to become too rich?
bad or misreading MAP or MAF sensors, bad ECT sensor, bad TPS sensor, stuck open fuel injector, or problem with fuel system, faulty parameters set in ECU or bad ECU.
1989 2.8 Camaro runs then shuts off?
ECU is probably bad.
If a 1989 Jaguar XJ6 will not start but you have a have spark and fuel and pressure is delivered to the injector pipe however no fuel enters any cylinder what could be wrong?
AnswerFuel injectors are not opening. They open by electrical pulse from the ecu. You could have a short, a broken wire, perhaps a bad fuse or the ecu could be defective.You also might have a bad crack sensor on the front of the engine. ECU doesn't know the position of the cylinders therefore no activity to fuel injectors etc...
How do you fix an ecu error code 13 on your 90 integra ls?
It is the error for the barometric pressure switch and it is located inside the ECU requiring the ECU to be replaced. Most of the time it is a bad MAP sensor that is causing this issue.
