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Loss of power

Question : I OWN a Gen2 (A) 2004.

A few months back, the engine light indicator came on and there was loss of power when stationary.

The car jerked when I moved to the Reverse or Drive mode but after I switched off the engine and waited for 10 minutes before starting, there was no problem.

The problem came back again after a few days.

I took the car to EON and they said the sensors were filthy and rectified them.

However, after two months the problem was back again and then the the battery malfunctioned.

I changed the battery and everything was fine but the original problem came back after a few weeks.

Answer : I do not think there is a problem with either the sensors or the ECU.

I would look at the ignition switch harness or the main ECU harness.

There seems to be a bad connection somewhere (most probably at a multi-pin connector) that is causing the problem.

Unfortunately, sometimes the ECU/ harness checker cannot find the fault as it is intermittent and you have to resort to physically pulling off connections, cleaning them and refitting, and by a process of elimination finding the source of the problem.

 
 

Off and then

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