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My Toyota picnic is giving me problem, when driving on motion the car fired well and after covering some kilometres it started jerking heavily on slow down mode either for pot holes on the road or police check point and moving on speed will not actually show itself but slow down or stop the engine will vibrating and eventually stop itself then hard starting will occur at that moment.

After some hours of resting, it will start and run well until it covers some kilometres again before the same problem will reoccur. I have changed plugs, plugs wires, coil, fuel pumps severally, fuel filter, air flow. What do I do next?

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Can you read the codes from it? Sounds like a bad sensor if anything that’s making it do that, or perhaps a really bad problem with the head and the valves, but try those codes first, obd2 you can rent a scanner and obd1 you usually jump a pin you can find in your manual and watch a blink of a light to read the codes

  • I have also changed one of the firing sensor from the injector mouth, but only left with one the sensor in same injector mouth to be changed – Ralph Okhueleigbe Oct 10 '17 at 6:24
  • I have also changed one of the firing sensor from the injector mouth, but only left with one the sensor in same injector mouth to be changed – Ralph Okhueleigbe Oct 10 '17 at 6:25
  • Please may i know what you mean by obd2 and obd1 – Ralph Okhueleigbe Oct 10 '17 at 7:21
  • It’s the cars diagnostic system and it’s way of letting the computer tell you what’s wrong, pull the codes and you pull the general problem – sjfklsdafjks Oct 10 '17 at 10:02

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