scanmaster

[equalizer442]

i think my scanmaster is gone nuts, its stoped recording the highest knock sometimes. today i pulled a 9.0 and when i checked it later it was as if it did not pull any, you know the button on the right.

as for the knock its been increaseing and i cant get rid of it. im running 15 psi now, i was runing 17, and some times i get 15-16 degrees but mostly 8-9. for a while i had it running perfectly with around 1 - 3 degrees on top end. any ideas how i can lower it while keeping my 15psi and running on 93 pump gas?

 

[equalizer442]

o yeah i nearly forgot. some times atleast once every 10 mins the o2 volts go to 000 for about 3 mins then comes back to normal. would all this came from a bad ground or am i going to have to get a 02 sensor?

 

[BADINBLACK6]

Check your MAF I kept getting 000 on mine and it was a bad maf I also started getting knock after not having any the Maf just went bad.HTH

 

[blackbuick87]

It is normal for it to read zero when you let off the gas


It also will not record unless you reach a certain TPS voltage, so if you are getting knock at half throttle it will not record.

 

[equalizer442]

errrrr how much do the new mafs cost? its got a nearly new lake wood put on by the last owner, maby 6 months old

 

[equalizer442]

how would you ll go about eliminateing your knock? im running 40 psi fuel pressure ideling, would jumping it to 45 help?

 

[Rollin]

Lets get this in the appropriate forum.... Gone to Scan Tool Tech.