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Vauxhall Vectra c VVT

shaunauto

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Public Member
Hi i have a 1.8 petrol vauxhall vectra c with VVT .Engine is z18xer 2006 .Got a slight RPM fluctuation at idle and a slight vibration on the steering but no where else.Had throttle body off and it was pretty clean but sprayed it with some carb cleaner.Fuel trims look good on scan data.Noticed after leaving car over nite and looking at scan data koeo i noticed the iAT was about 23 C and ambiant temp on scan tool was around 9 C and temp inside car on display was about 10 C .iAT is built in with MAF sensor .Also Maf reading was 0.33v with koeo .No drivability issues apart from rpm fluctuating. Did not like the high number of the iAT and was wondering if this is ok.I thought iAT should be near ambiant temp .
 
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