I am in the process of fault finding an idle issue with the 1UZ and have traced it back to the ISCV. I now have a few questions.
1. When I test the ISCV as per the manual (pulsing in sequence S1, S2, S3 and S4), the valve doesn't move at all. It feels like it tries to move, but doesn't. Is it a fair bet that the unit is stuffed? I have pulled it apart and it's not stuck mechanically at all.
2. How long after the ignition is switched off, should power remain on B1 and B2? When I switch the ignition off, power remains only for a very short period of time, say a quarter of a second to half a second. Is this normal? When I pulled the ISCV out last night, the valve was closed all the way and I know this isn't right....
Thanks and sorry for bringing this up again, but a search couldn't help me either.
Cheers
1. When I test the ISCV as per the manual (pulsing in sequence S1, S2, S3 and S4), the valve doesn't move at all. It feels like it tries to move, but doesn't. Is it a fair bet that the unit is stuffed? I have pulled it apart and it's not stuck mechanically at all.
2. How long after the ignition is switched off, should power remain on B1 and B2? When I switch the ignition off, power remains only for a very short period of time, say a quarter of a second to half a second. Is this normal? When I pulled the ISCV out last night, the valve was closed all the way and I know this isn't right....
Thanks and sorry for bringing this up again, but a search couldn't help me either.
Cheers