02 Voltage goes blank when going wot????

[tbird]

Friend is having an issue tuning on his datalogger when he goes wot the 02 voltage read 0.00????? weve replaced the sensor and checked all wires and nothing helps... He is also running a vpc if it matters...

 

[awd4g63]

Check the ground wire that connects from the end of the downpipe to the chassis. Mine was disconnected one time and when I went WOT, it would spike .94-.92 for a split second, then head straight for .00v. Worth a shot

 

[tbird]

could be the problem no ground strap since there is all custom exhaust... mabey ill add one but i dont seriously see that being the problem.

 

[awd4g63]

It's probably something along the lines of a ground wire. Check it and see. I'm willing to bet he's not having very much knock at all while he's reading .00v on the logger.

 

[tbird]

in top of 3rd and 4th hee was getting some high knock and high egts.....