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Coil-On-Plug(Non CDI, PNP type)
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<blockquote data-quote="dawg" data-source="post: 1064010363" data-attributes="member: 839"><p>I replaced plugs and had an ECUFlash and the problem doesn't exist any more.</p><p>Maybe you can check on the following areas.</p><p></p><p>1) Spark plugs, correct gap</p><p>2) O2 Sensor condition (mine works, but the reading was off)</p><p>3) Throttle body</p><p>4) ECUFlash or any ELM327 bluetooth + torque app or Dashcommand to read your ECU for faulty codes.</p><p></p><p>I didnt need to change plug cables at all, and I suspect it could be due to the throttle body and O2 not working well, so the car doesnt enter close/open look properly hence the high rich fuel injection at high rpm (always seems to be around 5k rpm for me)</p><p></p><p>My O2 sensor is not in good condition so the mechanic recommended to run full time open loop if I didn't want to fork out $ for a new O2. and full time open loop has it own advantages as well. Previously I can only hit around 350km - 380km per tank, and with the new servicing + tuning, I am able to get 420km (red light appears) - 450km (empty) (light foot 50:50 city/highway driving). I'm still monitoring my fuel consumption to feedback to the mech so that he can adjust his tuning once I get on a dyno.</p></blockquote><p></p>
[QUOTE="dawg, post: 1064010363, member: 839"] I replaced plugs and had an ECUFlash and the problem doesn't exist any more. Maybe you can check on the following areas. 1) Spark plugs, correct gap 2) O2 Sensor condition (mine works, but the reading was off) 3) Throttle body 4) ECUFlash or any ELM327 bluetooth + torque app or Dashcommand to read your ECU for faulty codes. I didnt need to change plug cables at all, and I suspect it could be due to the throttle body and O2 not working well, so the car doesnt enter close/open look properly hence the high rich fuel injection at high rpm (always seems to be around 5k rpm for me) My O2 sensor is not in good condition so the mechanic recommended to run full time open loop if I didn't want to fork out $ for a new O2. and full time open loop has it own advantages as well. Previously I can only hit around 350km - 380km per tank, and with the new servicing + tuning, I am able to get 420km (red light appears) - 450km (empty) (light foot 50:50 city/highway driving). I'm still monitoring my fuel consumption to feedback to the mech so that he can adjust his tuning once I get on a dyno. [/QUOTE]
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