hi there,
i posted a concern with engine light and flashing cruise. Have now narrowed down issue and completed some tasks. Thought I'd solved the problem but it is persistent. The story so far:
* engine light and flashing cruise light - would not rev over 4500rpm - cough and splutter
* bought OBDII tool and discovered P1028 code - "VVL Systems 2 Performance" ????????
* changed oil and filter
* bought new battery
* Buddah thought might be catalytic converter - car has been sitting for a while and took her for a drive - thought it might solve the problem - did so temporarily
* at times i clear the code and will be nice for a while until i push the revs to 4000ish. Then she misses and the lights start again
* removed the VVT connections and server - cleaned the 'bungie'?? bolts and gauze - (clean anyway)
* when I disconnect the VVT connectors on each bank, the OBD reader recognises that they are disconected and reads P028(i think) and laboured when reconnected
* Used the software (Palmer Scan Xl) and found that through the revs (700 - 4000) the "Oxygen Sensor Voltage Bank 1 Sensor 2" and Oxygen Sensor Voltage Bank 2 Sensor 2 were very different in readings - not sure what that means. At times one Bank 1 is reading 0.801V and Bank 2 is 0.201V. seems like a culprit but i don't know if that is normal or what to do to resove it. No idea where sensor 2 is anyway!!
* I have googled for days... and tried to solve things on my own but P1028 does not seem to be a common fault and therefore has a suggested fix
I would greatly appreciate any advice or wisdom
thanks
Peter