I have the same problem which is intermittent. It does seem to vary with rpms whereas it will read accurately at idle. Ive just gotten used to living with it.


'04 Taco x-cab 3RZ FE stock (daily driver)
'90 x-cab 22RE stock
'82 Hilux 6" lift (ACES HI)
'82 2-Hiluxs' Rally Edition (parts)
'81 Hilux 3" lift (parts/restore)