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Author Topic: GM 2.0DTi lacking power  (Read 10659 times)

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TheBoy

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Re: GM 2.0DTi lacking power
« Reply #75 on: 09 April 2014, 18:39:37 »

Does it smoke when you give it full throttle?

Are you able to read live values for
- manifold/boost pressure?
- quantity of fuel injected?

My thinking is that if it is injecting enough fuel but not producing enough power then it will smoke.

If the ECU is asking for maximum fuel but there is no smoke then that might point to a pump problem.

If the ECU isn't asking for maximum fuel then why not?
At full chat, you can see smoke in mirror in daylight. So I guess its smoking like a bastard
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TheBoy

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Re: GM 2.0DTi lacking power
« Reply #76 on: 09 April 2014, 18:40:23 »

After all the power jokes he's made about my 2.2, mines a Monaro VXR in comparison to his battle bus.  ;D
Working properly, I'm happy for a test, man versus boy ;)
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TheBoy

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Re: GM 2.0DTi lacking power
« Reply #77 on: 09 April 2014, 18:40:56 »

After all the power jokes he's made about my 2.2, mines a Monaro VXR in comparison to his battle bus.  ;D
Working properly, I'm happy for a test, man versus boy ;)
I'll need corners to make up for no power, though
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Andy H

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Re: GM 2.0DTi lacking power
« Reply #78 on: 09 April 2014, 20:34:35 »

Does it smoke when you give it full throttle?

Are you able to read live values for
- manifold/boost pressure?
- quantity of fuel injected?

My thinking is that if it is injecting enough fuel but not producing enough power then it will smoke.

If the ECU is asking for maximum fuel but there is no smoke then that might point to a pump problem.

If the ECU isn't asking for maximum fuel then why not?
At full chat, you can see smoke in mirror in daylight. So I guess its smoking like a bastard
So it isn't burning all the fuel it can get. :-\
3 possible causes I can think of
1- not enough air (I was convinced it was going to be the intercooler.)
2- poor injector spray pattern
3- incorrect pump/cam timing
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