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C4 - DS4 Owners :: Forums :: Coupe and Hatch Pre 2011 cars :: Technical Questions

Intermittent underboost

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Author Post
Fri Sep 15 2023, 11:14pm
Member No: #61191
Joined: Sep 15 2023
Location: Portugal
Hi guys,

My coupe 1.6 hdi 110 has an intermittent underboost.
Whenever it happens I've learned that if I unplugged the MAP and plugged it back in the problem momentarily goes away.
I bought a new MAP for that reason and no luck.
Took the MAF out and cleaned it, didn't help.

I'm going nuts with this problem, nobody seems to be able to fix it.

Any suggestions?

Thanks in advance

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