VX stalling intermittently wont start

[barney007]

Hi all
i have a VX that has intermittent hard starting. Battery and starter fine . sec light goes off while cranking .- key and contacts on ignition are fine. Cranks good but wont fire. Leave for couple mins and it starts. Has been stalling when driving as you slow down. Only codes are 13 right oxy sensor and 72 intermittent speed while driving fault.
Got stuck at shops today and poured rum an coke over the crank sensor but didn't help.
any ideas?

 

[caaf]

Harmonic balancer/sensor.. Check to see if there's excessive play and next time try water and not a sugary drink that will calcify/corrode/intensify resistance terminal joints..