gogetit Posted February 26, 2023 Share Posted February 26, 2023 Hello, I have a problem with my Zafira C 2.0 CDTI, the car runs well at low revs, but when hold the engine in high revs the check light comes up and car goes in limp mode. ECU stores P2270 fault - MAF sensor performance. I removed the MAF from the car and clean it, also checked all pipes and didnt find any leaks. I checked the MAF values in live data and seems ok, but I noticed that MAP sensor actual values values are lower than desired from the ECU. Also checked for the leaks around the MAP sensor, but cound''t find. I would appreciate any help if anyone is faced with that problem. Quote Link to comment Share on other sites More sharing options...
Vauxhall Owners Club Posted March 10, 2023 Share Posted March 10, 2023 If you run the engine with the MAF sensor plug disconnected then it will run at a default setting which is close to where is should be so if the engine then runs well you know its the sensor. If it doesn't make any difference then I would be looking elsewhere.....possibly turbo variable vanes gummed up with carbon is a popular one for these symptoms Quote Link to comment Share on other sites More sharing options...
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