hey got a b16a in a 91 hatch dx is running and idling fine but throwing a CEL 22 and i have tried to change the wires to make sure i didnt have them backwards have taken sensor off and cleaned it altho it was harly dirty and still have the CEL i am using mobil1 syn 5w-30 is that to thin for the oil pressure sensor or is there anoter way that i can get around it cause a b16 isnt a b16 without vtec its the only cel i have. Thanks in advance Andrew