Thread: C30 Engine : - C30 2.0L loosing power when warm
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Old Oct 12th, 2019, 14:20   #4
rules
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Last Online: Dec 2nd, 2019 16:37
Join Date: Aug 2007
Location: Cape Town
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Ok so ...

1. Cleaned the throttle
2. Cleaned both O2 sensors
3. Clean all engine related connectors I could get my hands on (including ECU connections)
4. Set spark plug gaps to 0.8mm (the gap was on the big side, suspect they are due for change at the next service)
5. Had battery disconnected for the whole time so presumably the ECU would have reset.

Unfortunately the "turbo lag" is still there. It's fine when cold but as soon as it reaches normal operating temp it feels like the power gets cut back. Once it gets to about 5000rpm it starts feeling normal again though, which is strange.

I'm assuming the 2.0l has no MAF as I could not spot anything resembling one.
Where would the knock sensors be located? Have read they could cause issues once they start to fail.

Thanks,
R
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2012 Volvo C30 2.0 Essential, Charcoal, Manual, 102000Kms
2010 Volvo XC60 D5, Silver, Geartronic, 168000Kms
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