Sammy T Posted October 12, 2019 Share Posted October 12, 2019 Hi All, I have Lexus IS 250 2006 model which loses power when driving up the hill. Has anyone experienced this problem before? I have serviced it recently. Thanks Quote Link to comment Share on other sites More sharing options...
ilv1004s Posted October 13, 2019 Share Posted October 13, 2019 could be a number of things dirty maf blocked cat missfiring bad fuel list goes on 1 Quote Link to comment Share on other sites More sharing options...
Sammy T Posted October 14, 2019 Author Share Posted October 14, 2019 13 hours ago, ilv1004s said: could be a number of things dirty maf blocked cat missfiring bad fuel list goes on Thank you ilv1004s I'll have the items you listed checked Quote Link to comment Share on other sites More sharing options...
S3AN Posted October 19, 2019 Share Posted October 19, 2019 The fact that it is only happening whilst driving uphill would make me suspect an exhaust related issue from the cat onward I would start there Quote Link to comment Share on other sites More sharing options...
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