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Q: How cars work before ECU is invented?
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Are there any cars without an ECU?

Until the late 1970's no cars had an ECU Currently only cars built in places like china and India may not have an ECU


Where the ecu chip located in a 1999 Mazda protege will it help your stalling in second gear problem?

how do ecu chips work how do ecu chips work


Where is ecu on Honda crx?

The ECU on 1988-1991 Honda CRX cars is located under the carpet at the passenger's feet. Four bolts hold a metal panel covering the ECU.


Does an ecu for a 1991 dodge stealth need mapped after installation?

No, that is for OBD2 cars.


How do you remap ecu of cars?

With a bi-directional scan tool and the car makers software.


Where is the ECU on a 1996 Geo Tracker?

behind left front speaker. on LHD cars, , in UK not. see my profile go to bad ecu and see full instructions there for removal.


Can the ecm for automatic work for manual transmission?

The ECU for an automatic can be used in a manual transmission. However, it will not work vice-versa with the ECU from a manual transmission in an automatic.


What is the function of speed?

It's used for the speedometer and the cars ECU (computer). It tells both how fast your going.


Where is the quad driver module on 1995 Saturn SW2 reverse lights and windows will not work?

The quad driver module on a 1995 Saturn SW2 is found in the car's ECU/PCM, which is the cars computer. If there is something wrong with the computer then the reverse lights and windows will not work.


Car you drive a car with the ecu removed?

No. ECU generally stands for Engine Control Unit, i.e. the brain or nerve centre for engine. Without it - no go. With that said, not all cars have an ECU. An older car with a carburetor, old-fashioned distributor and all that will run quite happily entirely without anything even remotely similar to an ECU. A Diesel car may not have an ECU etc etc.


What is the function of speed sensor?

It's used for the speedometer and the cars ECU (computer). It tells both how fast your going.


How do you reset the ecu in a 94 Honda civic?

Disconnect the battery for 60 seconds, if that does not work remove the ECU fuse and the backup fuse for a minute.