assalam o alaikom.. few months back i went to enercon here in karachi at shahrah e quaideen.. what he did he during tuning of the car, fingured IMA sensor inside the glove box.. car is 65k driven, genuine petrol.. now coming to issue i am facing.. whenever i start the car overnight or after so much time that car engine gets cold, car drops rpm at cold temperatures... once car reaches the optimum running temperature, this problem vanishes.. i went to honda drive in, they did everything, scanned n checked every parameter of the car which turned out to be 100% normal. they were co operative n kind enough that during diagnosis they even checked the tappets gap..
finally i searched over the net n found out that at cold engine temperatures, car is supplied with more air plus more fuel to sustain rpm around 1200-1300. then ecu controls the air n fuel as the engine temperature rises. so i found out that he fingured Idle Mixture Adjuster (IMA) n he reduced petrol supply by disturbing its original value.. that sensor must read 0.5 - 4.5 V for correct operation.. n that sensor is reading value in this specified limit but car stalls at cold engine temperatures.
now please can anybody tell me how to re adjust IMA sensor as per factory settings.. i love my car.. n this thing really annoys me.. n yeah one thing more, i went back twice to that enercon guy but he was so retarded that he misbehaved n said his CHOTA to chk it... i denied n asked CHOTA that let ur USTAAD do the job, upon listening this, so called USTAAD got furious n said that i would not touch this car, i would not do anything. i literally felt very bad n left with no hoped from that retarded..