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Hi, Guys, i just done modified on my car, but i found idle sounds a bit problem.

First, when i start engine, the rpm is around 900-1000, but sometimes is quite hard to start engine.

so the problem now is, after runing the car, and it get warm, the rpm start goes up, and stay around 1000 - 1200 during idle, and have sound boh boh boh boh boh when 1200 rpm, when 1000 rpm, everythigns is normal vrommmm idle sounds. i found the MFD there turbo boost, when 1200 rpm and come sound boh boh boh at the same time, the turbo graph show it drop a lot and up a lot, not stable, when 1000 rpm, its stable. is it my turbo problem? is it because the turbo, so the idle sounds like tat? and rpm goes to tat high? i am just using 264 cam.

Can someone please help me? please~ i ask for checking, but the mechanic keep telling me that is mapping problem, not parts problem. untill know still cannot solve this problem, sad...

Regards

Eric

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Unlikely to be the turbo, it does nothing at idle. Also not sure it is a mapping problem.

But if I translate your car sounds correctly, I think:

1. vacuum leak somewhere, or

2. lazy fuel pump

3. coil pack failing

4. TPS needs a clean

5. AFM needs a clean

There are DIY's in the Tutorials section.

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Unlikely to be the turbo, it does nothing at idle. Also not sure it is a mapping problem.

But if I translate your car sounds correctly, I think:

1. vacuum leak somewhere, or

2. lazy fuel pump

3. coil pack failing

4. TPS needs a clean

5. AFM needs a clean

There are DIY's in the Tutorials section.

Hi, Mate. thank you so your reply.

i did ask my mechanic check , but he say nothings was leaking. i m just change the fuel pump and new okada coil, vacuum is around where? is it intake plenum there? TPS is at where? i dont use AFM now, as i am using F con, and Map sensor.

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