Julian Carey Posted September 28, 2009 Report Share Posted September 28, 2009 Hi I have a 97 WRX fitted with VF34, front mount, pod filter and G4 plug in ecu, i've used the auto tune to start tuning the ecu, my problem is when neutral if i hold the engine rev's at about 1500 the engine starts hunting around up and down and the afr go's lean then normal then lean etc. Any help? Thanks Quote Link to comment Share on other sites More sharing options...
Julian Carey Posted September 28, 2009 Author Report Share Posted September 28, 2009 Hi Sorry i forgot to add that i have removed the AFM and am running with the MAP sensor and IAT sensor. Thanks Quote Link to comment Share on other sites More sharing options...
Simon Posted October 2, 2009 Report Share Posted October 2, 2009 You might find you are just hitting the over run fuel cut. (very light throttle and high vacuum) Quote Link to comment Share on other sites More sharing options...
martin battye Posted October 12, 2009 Report Share Posted October 12, 2009 plus 1 to that... check your inj duty while its happening. you may need to check your TPS cal or adjust the value in the tune Quote Link to comment Share on other sites More sharing options...
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