rx22nv
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- Joined
- Jul 27, 2021
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- Age
- 43
- Location
- Sydney
- Members Ride
- VT LS1 Executive
Hey folks, I have a VT exec with an LS1 and it's suffering from high idling at the moment. The high idle is also causing real hard shifts from park into gear, especially when cold.
I know there are a few causes of High idle, eg vac leak, dirty throttle body, dirty IAC etc. I have an envious customs cable and can read the ecu but my real question is how do I know what is a good or bad reading? Something isn't right but I'm trying to figure out where to start rather than replace every sensor. How do you know what is the normal range? At the moment there are no codes showing but she is idling at 1500, sometimes 1000, sometimes normal at around 800.
I've cleaned the throttle body, cleaned the MAF, new air filter, removed and cleaned the IAC but forgot to dip it in oil when I put it back in. I've sprayed around the intake and the PCV hoses trying to find a leak but now it has to be TPS, Bad IAC, temp sensor or 02 sensors.
Can anyone point me in the right direction?
I know there are a few causes of High idle, eg vac leak, dirty throttle body, dirty IAC etc. I have an envious customs cable and can read the ecu but my real question is how do I know what is a good or bad reading? Something isn't right but I'm trying to figure out where to start rather than replace every sensor. How do you know what is the normal range? At the moment there are no codes showing but she is idling at 1500, sometimes 1000, sometimes normal at around 800.
I've cleaned the throttle body, cleaned the MAF, new air filter, removed and cleaned the IAC but forgot to dip it in oil when I put it back in. I've sprayed around the intake and the PCV hoses trying to find a leak but now it has to be TPS, Bad IAC, temp sensor or 02 sensors.
Can anyone point me in the right direction?